Love it.  See photo of how I raised mine off the ground using grocery bread racks- my cat would not use it at ground level.  Tip - save the styrofoam that comes in the packaging - you can use it to line the bottom of the house and then put a pet bed on top of it.  This adds insulation and more moisture resistance.  Well-made outdoor kitty house and easy to put together if you start with part 1, then part 2, and so on  I would guess this would easily hold up to a 15 lb cat.  The window seemed a bit flimsy so I took 3M Window Film and sealed it up for winter - cat can still see out but this keeps the wind and rain out.  Hope this helps!