I have two of these compost tumblers.  Assembly is a little more involved than I expected and requires a little practical nous.  Once assembled it is a good product which I have used for a couple of seasons.  My main complaint is that metal parts - hinges, latches, etc, are prone to corrosion and given the environment of a compost tumbler, I would have thought this to be a fitness-for-purpose issue.  Assembly and operation instructions should be clear that tumbler should NOT be left with latch/hinges downward, and that metal parts be treated with a water resistant corrosion inhibitor on assembly and each season.  That said, aftersales service has been excellent with Lifetime sending out replacement hinges and latches (I am in Australia).