This works great for my independent kitties who do not always want to sleep inside with the humans.  Both my kitty babies are pretty good size (10 lbs. each) and they fit nicely, one per house.  I did add a blanket because there is no padding, etc. and also if you live in a very cold climate please note that the wall material is very thin so this house will probably not be warm enough without additional insulation or a heat source.  In our moderate winter climate I turn on a heat lamp on nights that are going to be below freezing and the babies stay toasty warm.  I clamp the light right onto the "balcony" railing.  These are fairly easy to assemble, I completed them unsupervised, much to my husband's delight.  I chose this house specifically because it matches our gray and white house, but I am pleased with the quality as well.  Overall I would recommend this product.