My cats love their pet door in the window! I purchased the hefty cat door for a little more space for my big boy and it has plenty of room. The door swings easily, but stays closed due to the magnet on the bottom. I was able to install it myself without any special tools, although I did use some additional weather stripping. Overall this product is great!

Pros: Installs easily, Multiple door lock settings

Cons: Needs more insulation measures

We have this cat door installed in our garage door into the kitchen - we keep the cats indoors, but the litter box in the garage! It's really easy to teach them how to use it. The locking features are great; we lock the door when we have the outside garage door up to avoid escape artists.

I loved how easy this was to install - no "helpful husband" needed.

Pros: super easy to install

Cons: loud and "flappy" during windy season