Compost Tumblers: Advantages and Disadvantages (video)
httpv://www.youtube.com/watch?v=K_taElYPOuA This is a short and sweet video... he's either super strong or there's next to material in there! I'm surprised he didn't mention the benefit of having a tumbler spinning end over end vs. horizontally. This looks like a decent tumbler although it looks tippy. Either way, good stuff.