I have zero complaint with their product. My issue is with Don GruBee not honoring one of their products warranty.
I only have two of the very same product from them. By all accounts, they appear to be well made... unfortunately, I followed THEIR INSTRUCTIONS TO THE "T" and it damaged one of their products. They refused my warranty claim even though I followed THEIR WRITTEN INCLUDED INSTRUCTIONS. Once I realized my mistake (in following their instructions) the 2nd product went without a hitch. I am using the first product as well, however it's a permanent fix that prevents me from some of the flexibility afforded the standard product installation.
Bottom line... I followed their included instructions EXACTLY. I was then essentially accused of being an idiot by Don (in a very nice way) and he refused the warranty claim. I will not... ever... purchase another product of their again out of PRINCIPLE ... and nothing else...