Easy to assemble as it's pretty much just stacking trays on top of each other. The more complicated part is the general user instructions. It comes with one layer of coconut husk but you'll most likely need several more as well as a decent number of worms (obviously not included). Fair warning that it will take a long time before the bin starts producing compost and there are more rules and stipulations about what you can put in it then you'd expect.
John Green 
