Not sure if this helps, but we started off for a few years with an above ground intex and I used it and loved it. First year we didn't, second year we did. Made it more easy to level and it was softer on the feet. The first year regardless of how long we tried to get any little rock off our base, seemed one would always find its way to the surface. I wish I would have put it there the first year. We made the plung to a IG this year, but if I was to have an above ground again, I would do it.
It was a pain, to tape seems and cut, but in the end it was worth it.