We live in the NW and have 3 rescues a corgi whippet mix and 2 basenjis. Love that they can go to the back yard to play and do their business with out us. Gives us peace of mind we don't have to hurry home to let them out like our friends who don't have a door.
On the cold winter days, they are hesitant about going out and stand half outside letting in the cold air. It's also fun to watch all 3 race out the door when they see something to chase from the living room, thankfully the door slows them down giving the rabbits time to escape!