Would have rated a 4.5. Definitely add the top after you fill be base with water 1/2 way. I had to level it with shims to make sure the fountain was balanced to flow correctly. Super cheap to resolve but note should be made. Too heavy to move or adjust otherwise. Had an issue with one of the valves not closing when turned. Took almost 30 min to figure out. After being exhausted we added rocks to the cups where water was spewing out at the top and called it a day. Works for now. We’ll see how long it lasts. The flow is on high and quite loud, but I’ve gotten used to it. We’ll, I have.  My boyfriend says it makes him want to go to the bathroom. Still has a relaxing sound.