This is a very good tree for the money.  It's a heavier duty and larger than I was expecting.  The top circular rest area could be a bit bigger but my big boy took to it right away.  His big butt seems to fit pretty well and he seems comfortable, so that's all I care about..  There are no "real" instructions" but the pieces are all lettered so you literally put part A into part B.  Not a problem.   

Pros: Doesn't wobble, stable on rugless floor. Sturdy and large enough for a 14lb cat.
Cons: Bad instructions.