This is probably one of the best cages on the market. It is sturdy, roomy, and easy to clean. Some major issues I have with this cage is that it weighs almost 100 lbs. and not easy for a small female to assemble. I would definitely enlist some help if you do not have brute strength. The box says no tools required for assembly, however, I did need to have a rubber mallet to put the cage together which took me several hours. Definitely a weekend project. The plastic pans that come with the cage got chewed up pretty badly by my girls in just a few days and I had to order the metal pans from Bass. Other than that, this cage is worth the time and investment as my rats have more room to play and sleep in. :)