
From box to window in minutes. Literally just connect some hoses and screw on the suction cups. I had a small problem with one of the cups sticking. But I forgot to clean the window before trying it. No problems since cleaning. I have two cats and both were there at the same time with no problems. Both of my guys seem to like it. And that's great, because more often than not, they like the box better than what I buy. I would say quality product

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