These for all intents and purposes work great. The vents on the sliding doors fit well. However, the vents on the front windows do not fit all the way to the bottom of the window frame at the front of the windows themselves. There is a 1" to 2" gap MISSING that does not fit all the way into the window frame itself. The metal brackets that fit into the channel are also falling out although they have been installed correctly. I can not send them back as they are already installed. So, I am making ...