My cat loves it! had him check it out for a few days before putting his litter box in there. Then showed him where to do his business and he goes with no problem since. Dogs can not get through the cat door so works perfectly and smell does not get bad at all (good cat litter too of course). Directions were not very clear. Play around with the pieces to make sure you are putting the hinges on the correct sides (had to redo them) as well as the separator. It may take some time and be prepared to redo some parts. Otherwise, very sturdy, quite heavy, and is perfect in my office and can't tell there is a litter box in my room.