This cage is for our new Chinchilla.  It is very sturdy, not hard to put together, and very well made.  It has lots of space and works great for the animal.  The problem with the cage is that if your animal needs some type of shavings/litter, it goes everywhere. Although there is a slide out tray, it is not a "trough", so the litter and anything else fall right out the side of the cage.  We made fiberglass walls, which help a bit.  It would be nice if the manufacturer made a deeper tray for this to fall.