Purchased three of these for one gravel bike and two townies. They are solidly built and have some adjustability regarding the direction and resistance of the hinge. All in all they work pretty well, but depending on the bike/rider they may not be the easiest thing to use as you need to lift your bike up vertically while stabilizing the wheel/fork to get them hooked up. My wifeï¿½s townie is pretty heavy and has full fenders (prevents pulling into a wheelie) so she struggles with it. I suspect kids would also have difficulty. All that said, they do what they said they would some Iï¿½m good with it.
This system allows you to fold up loaded bike racks along the garage wall, since we have 5 bikes, it was like adding 2-3 feet to the width of the garage. Doesn't work well for deep dish rims (greater than about 40 mm, probably not a good idea to be hanging bikes by carbon rims anyway).
I got this for the firehouse errand bike and folks thought that I hid the bike from them. It blended right in with all the other equipment and we had more floor space! I'm going to have to clean up my garage and maybe by two more of these!