Purchased 3 of the heated A-frame, multi-cat houses. The kitties probably think they've died and gone to heaven. They use them all the time and it's 3 kitties (who are approximately 7 months old) per A-frame. Saving the third house for when they get larger. I'm very thankful that I found these houses. I think they are well worth the cost, even though my neighbors think I'm nuts for paying that price. What counts is that the kitties are safe and warm.