Not really much to discuss here. I have a set and experienced some of the same issues mentioned. I still bought them. They are cheap. Expect them to perform cheap. This is the problem with a lot of things.....folks want the cheap to work as well as and in some instances be better than the more expensive/better quality pieces. Bottom line is if you want to push a car into a corner and leave it for a bit, these will be fine. If you are going to be moving around on a regular basis, save your money for the higher quality pieces.