We received this 15 foot round liner pad this week and have used it in the install of the Intex 15 ft x 48 inch deep round pool. Here is my experience and opinion in review. The Blue Wave 15 feet round liner is a white colored, soft felt like material that is maybe 1/32 of an inch thick. We installed our pool by building up a raised, level area of soft, clean, compressible dirt, then added retainer wall bricks. After applying sand around the circumference of the pool floor edge, we then used the included "ground cover" pad that came with the Intex pool, and over that we placed this pad. We then installed our pool liner directly over this felt surface, filled it, and we were done. My first impression is that it really matters what you place this over on your pool floor surface (bottom). The fine soil we used feels very soft under foot with this thin felt pad in place. The pool floor is very enjoyable to walk on as it is now. I think it's important that you remove any stones, because this pad is not thick enough to prevent larger stones or objects from poking up, and being easily noticed. This is not a very thick pad, but it is puncture resistant. This pad should not be meant to cushion your pool floor, but to prevent roots or stickers you may have missed from eventually puncturing through your pool liner bottom. Having said all that, I am satisfied that for the small extra amount I paid to add this into the pool build, it does improve the feel of the pool bottom, and gives an extra layer of protection from any small stones I missed. I literally cannot feel any stones, even though I know there were a few I just ignored, because they were too small or too many to pick out off my pool floor base prior to covering it. Pros: - Fits the 15 foot pool diameter with about 2 inches to spare. A bit stretchy and easy to place without any velcro or tape needed. - Provides a decent cushion like feel to the pool floor, if you've done your job getting it reasonably smooth with soft dirt and/or sand ahead of time. - Puncture resistant to blunt sticks or rocks. An extra layer of protection beyond a simple, cheap ground cover. - Relatively low price to pay for a large area of puncture resistant, decent quality felt. Cons: - It's white, so right away, it's going to get soiled and that will be visible around the pool edge. Should have made it light brown or blue. - Not quite as cushion like as you might think. Better use extra soft dirt and/or sand if you really want a comfortable cushion feel to your pool bottom. Overall, I'm quite satisfied with this product. Besides the fact that I hate the white color, it has met all my expectations. I can recommend this product without any reservations. The white felt may be trimmed away after install, and it does wash with a strong hose spray, so that is a work around to the easily stained or soiled white felt color issue.