Review on Ultimate Comfort and Entertainment: elfsky Cat Window Perch - Double-Layered Seat with Beds, Scratching Post, and Resting Spot for Indoor Cats by Kayla Walton

I'm so happy with it. When I first tried to attach it to a balcony door, it was a suction point that just wouldn't stick. I've tried wiping with warm water, tried a different suction cup, etc. but it just wouldn't stick. When I lifted it a few inches everything stuck perfectly and has held up ever since! And my boy tests it - he runs for him like a baseball player heading for his base and he's never bad! I've only seen my two cats on it a couple of times, but then again, they're really tough (about 11-12 pounds each). so I stick the wand attachment on the bottom so it can reach the bat through the hole, it's really cute) but I haven't had any issues with it falling apart or detaching. I am incredibly happy with this purchase! If you're having trouble with the suction cups not sticking and you have room to adjust to a different section of wall/door, try moving them!