Very low quality. Took it out of the box and something was rattling inside the sealer. Turned out to be an extra pin that secures the lever...must have been lost in there by mistake during assembly. The bottom piece is plastic. After the first use, the vent holes melted shut.

There's a dead spot in the middle of the heating element that puts a gap in the seal. I have to seal everything twice.

The heating element engages before the top lever is down enough to touch the bag I'm trying to seal. The highest setting on the knob only heats the sealer for a few seconds (maybe 3-4) so you have to be quick when you lower the arm to start sealing.

I am very disappointed in this product and should've spent a few extra dollars on a better unit.

To sum up what many of the other reviewers have said, this is a very well-designed, but poorly-assembled product.

Unit was Dead-on-arrival, but rather than send it back, I opened it up. I immediately saw and fixed the loose connection. While I was in there, I also bent the tab that engages the switch to make it turn on sooner (as other reviewers have suggested).

Anyway, after the initial fixes, everything has worked amazingly well on any bag we've thrown at it. This thing can even heat-seal a ziploc bag (for anybody who's interested).

It may need a bit of work to get running, but why complain? You can get an industrial grade heat-sealer for a lower price than a dumb plastic one if you're a little bit handy!
(I'd sure do it again.)

Works great! After reading a few reviews, I was hesitant to purchase this product. Other reviews say there's isn't metal - but mine was. It is so easy to use, and the price is excellent. Would definitely recommend.

Update: 12/28/16 Have used this to seals thousands of bags now and it's still working great. I originally purchased it for $25 but right now it's listed at $10. I'm thinking about buying just to have an extra one on hand.

I purchased based on at the time a single review and before I received it Sum Dood posted his review that had me a bit worried. I received the sealer, took it out of the box, plugged it in, put a bag in, closed it, pushed down, and nothing it didn't work. I noticed some play in the hinge so I tried again, this time I pushed the arm back, and it worked. Ok so it apparently needed a internal adjustment. I unplugged it, turned it over, removed the four screws in the rubber feet holding the bottom cover on and had a look. Sure enough when the arm is pressed down to seal the bag the arm that is suppose to depress the switch to activate the sealer wasn't quite bent all the way to do the job. Simple fix I used a pair of pliers to adjust the angle. All back together it works perfect now, I sealed more than a few bags (nice to not have to cycle my vacuum sealer each time just to make custom sized bags) with it, and works great. Photos attached, first with the bottom cover removed, second with the arm pressed all the way down you can see it barely touches the switch, third is after the adjustment with the arm closed but not depressed to seal yet, and the last one shows when the arm is depressed all the way down to seal.

As soon as I received it I tested it out 7 or 8 times. It worked effortlessly so I put it away. Tried using it yesterday and it didn't work so I shook it around and it worked (universal way of fixing things). I tried using it again today and it wouldn't work. I unscrewed the bottom and was following the wires and noticed one of the purple wires was not making contact to the metal prong. I just soldered it back together, screwed bottom back, plugged it back in and it worked! (In the picture it's the third prong.)