I've been intrigued by it for some time, my passenger window needs help. I wonder if it's as good as it looks, anyone for or against it? I wonder if the clamps should be cemented or locked in place some way rather than just squeezing them by hand? I wonder why 5 rather than 4 or 6 or whatever (at the price)? I wonder if someone has a better fix? (I wonder a lot).