My 3 keets love this room to fly.  Also, lots of room for their toys and rope perches.  Side doors are great for maneuvering to attach stuff to bars like rope perch anchors and other goodies.  The only negative (and really not one) is three perches provided need to run front to back, not side to side, but I don't use them anyway because I use grape wood, cholla wood and rope perches.