This product was delivered as expected. It shipped quickly and arrived on time.
There's not much you can say about a 10x10 sheet of EPDM. I purchased it for a small backyard turtle pond. 45 mil EPDM is heavy and can be ackward to work with. My pond is rectangular in shape approximately 5'x4' with an average depth of 1.5'. The pond has a ledge on the long side at a depth of 1'. The liner covered the pond completely and holds water without leaking.
Only time will tell how well it hold water, but it is thick and should do the job. We have turtles, fish and water lilies and cattails in the pond.
Amazon's price was considerably cheaper than buying in a shop. I priced it at both Home Depot and Lowes (no pond supply shops around here) and Amazon's price was about $30 cheaper.