I have 3 foot Geobins positioned all around my 'wooded' property; so each fall I simply go around with a rake and a leaf scooper to tidy up the surroundings.
My reward is leaf mold after 2-3 years for my raised bed garden. Note that I do not compost. I just wait for the leaves to rot.

Easily the best composter on the market, and at the best price, and it is HUGE! Expanded to full size it will hold three big Waste Management yard waste bins full of leaves. That's a lot!

Sets up easily, no stakes required. Just rake out a nice flat round area about 4 feet in diameter, make sure its level, and then pay attention as you fill so it comes out nice and round. Because while the material is plenty strong, its not very stiff and so relies on sitting on level ground and being filled evenly in order to hold a nice round shape.

I've been composting more than 20 years now with a very similar but slightly smaller composter and the GeoBin is the only one I can find on the market like the one I have now. All the rest are overpriced and designed to sell but not work. The big key that will unlock massive fast rich composting is when you realize it can be a composter AND a worm bin. You don't even have to buy or add worms, the red wigglers will find their way in. Simply encourage them with regular additions of your kitchen greens waste and coffee grounds. I like to mix these with a little brown leaves and "bury" several inches to a foot under. Mix these in regularly and in time you will be amazed at the teeming worms.

Then when you're ready to start another pile simply undo the GeoBin and set it up where you want the next pile. Be sure to move some of the wormiest stuff off the top of the old pile as they will really kick-start the new one. Wasted a lot of time and money and space on worm bins before I learned this simple trick.

One small issue after using this for over a year now. There's way too many air holes. Its fine if you are able to fill the bin all at once with the right mix for fast hot composting. For most with normal size yards adding grass clippings etc more gradually there are too many holes. This allows the outside to dry out and dry does not compost. The solution is to put a layer of cardboard around the inside before filling. Then as it fills poke a few holes in the cardboard. The cardboard will hold moisture, prevent drying, and gradually compost down along with everything else. Otherwise you will have to be spraying the outside on a regular basis to keep it from going dry. Remember dry does not compost, damp does.

I love how easy this bin was to set up, I love the adjustable size, and I love that its easy to move around the yard. I ordered the Geobin to compost leaves to make leaf mold. We thought about building a compost bin, but now I like that this composter is so mobile. My only complaint is the GeoBin comes with 5 Locking Keys, and you really need 6 keys if you don't make the bin its maximum size. (3 locking keys at each end of the long flat sheet that you shape into a circle) You can buy more Geobin locking keys but that increases the price of the Geobin. Geobin - Please start including 6 keys instead of 5, and I will buy more. For now I'm using a long twist tie.

This was my 4th year using one of these composters for my backyard composting (leaves, grass clippings, garden waste, kitchen scraps). It does an awesome job- big enough capacity that there's enough biomass to keep the breakdown happening year round, you can configure the size easily and on the fly, there's easy access to the pile over the edge for turning, etc. The compost comes out consistent- an issue I've had with every other composting system I've ever tried, this one has the best outcome... the mesh design and upright orientation of this composter allows the right amount of air and water to penetrate the pile, so as long as you turn it with regular frequency, the materials break down evenly and quickly. Easiest composting ever!
I've tried other types of systems over my years of gardening and permaculture work- those smaller rotating bins or 55gal (or smaller) converted barrels don't have enough capacity to fuel the bio-reactions, and then they get gross FAST, not to mention the issue of limited accessibility to the material through tiny doors; the on-the-ground 3-sided 3-bin system doesn't allow enough air to penetrate the pile and takes up a lot of space; random big piles in your yard blow around and and make a mess, etc. This composter solves all those problems, is cheap, simple, and durable.

I've made it this far in the 4 years using just one of these composters- I actively load up materials in batches, then it composts down; I add more material and that composts down; then turn regularly between big additions to the bin when the temperature of the pile drops... after a few months I take off the shell and start a new pile and let the other one rest/finish off until it's ready to be used- the resting pile holds it's shape neatly and I've never had any issues of collapse or blow-away. I increased my garden capacity this year, and so now I'm ready to pick up my second composter to get a second system going for the fall leaf season.

I wanted to note on the durability, since this is a plastic product and sits in the sun. I keep my composter outside year round in the intense Colorado sun, and have seen NO issues- no ripping, no fading, no weakening, etc. and it doesn't break down in the elements (110F to -20F temps, rain, snow, large hail, squirrels, etc). I don't cover it nor protect it in any way.... it's just bomb-proof. Can't say enough good things.

If you have a big yard with grass, and trees that drop lots of leaves (bag them in the fall to use the rest of the year), and a garden (or neighbors!) that could really use all of that rich organic material (for free!), you MUST be composting... and this is your simplest, cheapest, and easiest solution out there.

Last note- because the diameter/ capacity of this pile is large if you have it all the way expanded out, I found it helpful to use a long stem (20 inches or more) compost pile thermometer to give me an idea of the internal state of the pile, so I know when to turn it. One like this (the one I use is no longer available on Amazon): https://www.amazon.com/Thermometer-Greenco-Stainless-Fahrenheit-Temperature/dp/B01BMX3SYI/ref=sr_1_2_sspa?crid=298TAGUIEH72H&keywords=compost+thermometer+36+inch+stem&qid=1571264669&sprefix=compost+thermometer%2Caps%2C168&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzUVlGUEU3VjVJQ0Q5JmVuY3J5cHRlZElkPUEwNTc1MzM0NzVJOENMREdDQjNKJmVuY3J5cHRlZEFkSWQ9QTAwODY4MjIyQ0dKRkhCRU8zS0NJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

I bought this 3 years ago and it is still my favorite compost bin. I'm a bit of a lazy composter, so I'm not turning the compost very often. (I'm 74 years old) Every couple of months or so, I disassemble the bin and set it up nearby. and take all the composted material out and put it in the relocated bin. At the bottom of the bin I find finished compost! ( If I had the room I would buy another).