I have two of these and am very happy with how big they are. They have held up well over the last year. 
A few small improvements though... I would increase the size of the side openings to make it easier to pull out finished compost. I'd also install a built-in latch at the top to prevent the lid from opening rather than the current holes meant for a pad lock. Finally, the side openings were pretty tough to punch through and I scraped my hands a bunch trying to do it. All in all, I'd buy another one if I found myself in the market again.