Ferret doesn't mind being in this cage because she has so much room; she constantly tried to get out of the previous one - biting the wire etc.  Cage is easy to assemble (and disassemble I suppose).  No tools are required however a rubber mallet or some type of padded hammer will make it easier.  Build quality is good, in fact it is shipped with very little padding inside box; although box had taken some damage all pieces of the cage inside were a-ok.