After four years here is my review...

The Good:
I live in Chicago, so if you're in the city, it's great. Allows you to compost and won't attract wildlife (for us, rats).

Holds a fair amount of compost, two apts could probably share pending overall waste.

Dual bin design is key.

General Considerations:
You need to combine it with a dry source. Leaves or mulch is ideal. We don't have a lot of leaves in our yard so we're mindful to add paper products as well: used paper towels (w/o chemicals), tissues, paper bags etc.

Without a dry source you're going to get mushy compost, and so be it. I bought a pair of to-the-shoulder rubber gloves and scoop it into a bustub when it's complete.

Also, remember it will drip & smell a little until it's ready, so it needs to be tucked away somewhere. Best on the ground instead of cement.

The Not So Good:
The sliding door design doesn't work in the winter, it freezes shut. It's such a drag to NOT be able to compost for a whole season. I've developed a somewhat dexterous high-kick motion with solid boots on to snap it free, but have chipped and broken bits off the door over the years. What's needed are swinging doors with secure clamps.

I've also noticed the side vents close on their own.

Conclusion:
Great (and could use improvement).

So let me first preface this by saying that I a.) am new to composting, and b.) live in the mountains with limited access to other people's grass clippings.

That said, I'm going to point out that this composter has some design flaws that irk me tremendously, and it's definitely not for inexperienced composters. Of course, your experience may vary.

I searched around for quite a while for a composter that would fit my needs. As I said, I live in the mountains, which means possums, skunks, squirrels, turkeys, mice, rats, you name it. This was a good solution to keeping pests out. Also, the reviews I read made it look so easy to use. Toss stuff in, give it a tumble, walk away. Two chambers, one to put stuff in and one to let sit.

My experience has been less than perfect. I've had this for almost three years now, and I have yet to get a batch of "black gold" compost dirt out of it. I will admit that I am new to composting, my biggest problem being carbons to add to my pile. I produce maybe a gallon of green kitchen waste a week, sometimes up to three gallons a week. Unfortunately for me, pine needles, canyon live oak leaves, twigs, and acorns are not a suitable source of carbon (all I have in my yard), because all I ever get out of adding those is a 6 month tumbled mess of stinky leaves, twigs, and acorns. Let me tell you, there is no stink quite like the eggy funk of carbon-starved compost. I try other things that I have access to, namely the kids homework that I even bought a shredder for. Mail that's not glossy, brown paper bags, packing paper, sawdust, wood ash, anything I can get my hands on I try to use. Believe me, I'm reaching here. Still, it's not enough for the stinky mess that is my fly infested compost. So newbies beware: get grass or get out.

Next issue: Any time I do add those sources of carbon, I get compost balls bouncing around in the chambers. The carbons (paper is the biggest offender) tumble into a ball and never break down. When they bounce out of the composter and I break the balls open, it's perfectly preserved, albeit wet and stinky, paper. Newbies beware: you're gonna have to get your hands/pitchforks dirty.

Another issue: It's nearly impossible to get the compost out of the darned thing. That lid on top pops off with ease, spilling the contents of the other side. I really want to give the tumbler a good shake to loosen stuff and get it out of that tiny hole, but doing so will spill out the uncomposted items in the other chamber. I have to stick my arm and a hand-shovel up in the chamber to get the smelly mess out. This would probably not be an issue if I had access to that mythical thing called grass clippings.

Three years I've been trying to find a good compost solution here, and three years it's been stinky balls of wet paper shreds or green waste with a gooey center. I fully acknowledge that this is MY bad and not the composter's, but I still think that maybe it's not a "newbie" tool.

What I wish they would have done different:
-Made a separate lid for each chamber. Maybe I'll take some strong scissors and cut mine in half.
-Included options or instructions for something sharp to shred the balls of compost in there
-In the very least, advised people to get something to poke the compost around in there.

To other newbies: Grass seems to be a *must* for this composting business. Have a sharp stick (I have a broken plank) or a small pitchfork near by to break apart the compost balls.

I started borrowing grass clippings from my mother in law. Keeping my fingers crossed that I'll finally get that magical, black gold compost that I've been hoping for. Good luck to everyone else.

I read them all and basically it all has to do with the eternal "not my fault, it's a piece if junk !" : easier to blame the item.
It's an incredibly solid machine and very clever. The assembly is time consuming but IF you were to pay for it to come in one piece it would cost a fortune.
WARNING: You shouldn't have kids around while you put it together. ..nasty words will fly out of your mouth.
1â—â—Be certain you make sure the vents face up when you start.
2â—â—The FIRST PANEL goes into place to the right of that first space and then continue one at a tine.
3â—â—â— Most important AND frustrating, make sure the center separator fits in the panel grooves or you will have to start over.
4â—â—The two long screws are for the shafts to secure to the legs.
It is a great machine !!
SECOND UNIT:
Learned a lot from the first. Still the best Composter for any money. I wanted to address the water in the compost mix issue. Each panel has tabs at the top to fit into guide holes in the previous panel. IF each panel tab IS NOT inserted into these guide holes, they in turn become weeping holes which guide rain water in. Personally l also opted for using 100% silicone putty at each panel joint...little extra for huge return.
THE MAIN TOP is about the partition wall.
With the second unit l decided l didn't need the composter to be divided into two halves. It sounds good on paper but l can load our new unit with no divider, faster with no problem. PLUS, the partition wall is NOT a structural entity. It can be left out which also greatly facilitates assembly. In fact l even cut away the dividing bar at the door opening to make access easier both at loading time and emptying the compost when done.
This machine is designed to end up rigid as a tank. Once you made it as waterproof as possible you will not have any weight problem. It's like any other gardener project where you learn new tricks as you go. THIS has been a great addition to having a healthy garden growth without chemicals.

We were very excited about this composter--a seemingly logical step up from the pallet system we've been using. We received it two weeks ago, put it together without much trouble and have been filling it regularly.
Today, a rat chewed through the side vent and moved in. First rat I've seen on our property. Amazon was kind to give me a refund without making me return it. But I still need a composter. Argh! A composting bin needs to be stronger than that. I feel like I'm living in Charlotte's Web with Templeton.

Used the composter for about eight months. We did not have any problems putting it together. The design also works well with the separated compartments. The openings are a little small, but for this volume for it is adequate for unloading compost.

The bad: Unfortunately, the side cracked from normal use and the damage is spreading. A new part is required or the composter will be soon useable. I contacted Amazon about warranty and replacement parts but Amazon could not locate warranty information about product. I would like to keep using this as it works well and I do not want to lose $80.00...