I was a bit leery about the product because a few people had said it was not sturdy.  However, I was pleasantly surprised at the size and quality of the product.  I could see how it might need reinforcement at the base for multiple or very large cats but this cat condo has everything a cat needs to get to play, jump up high and hide in a "house".  My cat is in love with it!  The price is about 1/2 of what you would pay at a pet store for a comparable product.