The main item I would caution people with regard to this product is that the actual size is 5" by 5", not the 6" x 6" listed. I purchased mine counting on the 6" size, or at least it being 5.5". So I am disappointed in inaccurate indication of size--it caused problems in my application.
Other than that, I have no issues. I give it a qualified recommendation. Also, FYI, this product is quite heavy. I am guessing that the 10 ft. section weighs on the order of 80 lbs.