My kittens are LOVING this cat tower. Haven’t stopped running up and down it, playing tag from basket to basket and taking naps every hour on the hour since I unboxed it. My only issue is that it isn’t completely straight. It leans a bit — but this could also be due to how it was packaged and handled. It was delivered in a large box with nothing cushioning it and my fedex driver has a tendency to just throws things. This issue could be just mine.