I purchased this from my local Bed Bath and Beyond in their pet section because I was looking for a perch but had no sill for other perches to grasp onto. I loved that it had a no sill option. I was a bit wary at first because it used suction cups but they are huge and there's 4 of them so theres no way all 4 of them would fall at the same time, giving the cat a chance to get down if something were to go wrong. I've had the perch up for about two months now and it is still sticking strongly to the window. I have two cats that use it at different time that are over 10 pounds each and they love it. I would reccomend this. Just make sure you wash your window beforehand and push the suction cups hard so they get a good grip. =)

I bought this from my local Bed Bath and Beyond thinking that returning it shouldn't be a problem if it didn't work. I was very skeptical, I mean really, four suction cups holding up 50lbs of weight for an extended amount of time?

Well, when I got home I put it together which was fairly easy. Threading the line through the two top suction cups was kind of a pain, and the PVC pipes felt a little flimsy but I figured that was to be expected from a dollar item. I cleaned the glass with windex (leaving the glass slightly damp) and really put a lot of pressure on to the cups to ensure a secure grip. It felt sturdy, so I put my heaviest cat on there (about 20lbs) and he didn't move for a good 3 hours! My other cats are warming up to it, and upon inspecting the suction cups again they haven't moved or lost suction.

So far so good, I'm kind of just waiting for the suction cups to come loose and fall, I guess we'll have to see.

*one week later*
Still hasn't moved or slipped with regular cat use. Very impressed.

We have a 3rd floor attic apartment and all our windows are closer to the floor with no window sills. This is the most perfect solution that I could have ever hoped for! I know it says can hold 50 pounds and great for 2 cats and all that, but unless you have really tiny cats, there is no way you are going to fit two on there. As soon as a cat gets up there and gets really comfy and gets all stretched out, there is absolutely no room for another one. But, with the price and quality of this, I will have no problem ordering another one for our other kitty. I think this may be the only as seen on tv product I have ever tried that is BETTER than expected. I'm actually considering getting another one to hold some small flower pots that I will be growing catnip in. It's really sturdy, the fabric used as the 'bed' is really heavy duty, I'm still shocked at how well this is made. Anyone with a cat and a window HAS TO GET ONE OF THESE!

UPDATE: 10/31/12- I now have proof of just how sturdy this is. I was in the kitchen doing dishes when I heard 'Wow, what a nice swing!' I didn't think much of it, but when I came back out to the living room, I saw my 3 year old sitting on the sunny seat kicking her feet as if she was on a swing. Of course I grabbed her off of it as quickly as possible and explained that it was for the kitties and not her, but then it hit me how awesome this seat actually is. My daughter is 42 pounds. So they're not kidding when they say it can hold a bit of weight!!