I really would like to make it a 4.5. Litter Box was shipped on time and was in perfect condition when I opened the shipping box. All pieces where labeled and it even came with a screwdriver.  The instructions are easy to follow. It went together easily. I did need a person the hold the sides up before the top went on to steady them. The only instruction I had trouble with was which way to put the drawer slides. I ended put them on backward and had to redo them after I finished putting all together.The 4.5 rating is only because the cam locks are made of a very soft metal and will easily get the screw head striped. Once you do that there is no way to turn/lock them in place.I think the overall quality is excellent.