My boys love it! Great cage size for 3 growing ratties. My boys are nowhere near full grown and I know they will be able to use this cage forever. Sturdy. Some minor problems with melted metal bits on some of the bars. (Not an issue of Wayfairs.) 
But we just filed them off and our cage was good to go! Easy to maneuver with its wheels. Cage doors open with ease and locks are secure. Love it!