Not 5 starts because I had some trouble getting it to stay put with the wheels, but maybe the floor in my living room is not very flat. The "door" could be finished better, it has a bare edge where you get the wood and will leave splinters in your hands if you slide your hand over it (I would have liked to see the same outside finish there).
Apart from that, it's a nice sturdy rack, it comes with plenty of bolts to mount all your stuff and I fixed it's instability with a little piece of paper under one wheel -- not too bad at all! I actually don't know if with such a hight if it could be any sturdier.