Review on J Fiber Density Waterproofing Membrane with Enhanced Fiberglass by Russell Robertson

I tried using this today and it didn't work. It's cracked at the corners — where it's supposed to be strongest — and there's no way I'm going to be installing $800 worth of tile, much less wasting more time and risking water damage to my walls — with something I was beginning to doubt. I gave up and took something more expensive.