This is a mixed review. The product is very good, but our cats are not using it. I got this for our 10 lbs cat Rufus, but he will not leave his old window perch (single perch, about 12 by 24 inches) to try this one. Or he goes to his tree with steps that is window height. Then it is too small for 18 lbs Levon, as you can see, and his smaller twin brother is too timid to use it. So I love the quality, it is firmly attached to the window ( I cleaned it and the suction cups with hot soapy water before using window cleaner), it looks cute, and it has a comfy pad that is removable for cleaning. It’s not working for our cats. but will be fine for cats under 15 lbs.