The product price is worth, I test is everywhere, windshield, hood glass door, it fits right whatsoever on a smooth road or country lane. I was going over 170km / h for 2/3 minutes with the GoPro on the front cover fully deploy for maximum wind taken and I had absolutely no problem is. The plastic qualities, the only downside is that you can not directly attach the GoPro case of the suction cup arm (you have to use the clip support, and yet it's really to find fault ).