This fountain is heavier & nicer than expected.  The assembly instructions were easy to follow.  Recommend laying it down to assemble.  Since the bottom is hollow, I'm worried the fact it's top heavy will make it easy to knock over.  I am placing in corner, out of traffic pattern.  I really like how high the water pumps out of the top.  BEWARE: instructions say the pump needs to stay under water when it comes out of the fountain for storage. I've never had a pump needing this treatment, but its worth noting.  Company rationed the rocks.  If you spread them around to cover everything, you can see the bottom tray.  If you pile them so you DON'T see the bottom tray, you don't have enough.  So you may need to buy more rocks.  A hassle, but not game changer.  Still glad I bought this fountain!