I ordered two of these and they are everything I dreamed they would be: large capacity, latching (yet easy to open) lid with carbon filter, and simple to use. Gone are the days of having bowls of scraps sitting around the kitchen and shouting across the room "Don't put that in there, that's for the worms!" We do both worm composting and garden composting, so I just took a Sharpie to our new bins and labeled them "Worms" and "Not Worms."
Although I hate plastic I took the review to heart that said they'd tried ceramic and glass containers and they strongly recommended plastic.
In case you are wondering yes, these are sized so that a standard grocery bag fits nicely. Reuse, then recycle!
Gnats are gone, stink is gone, mess is gone. A++ Exaco Trading, great product.