I am actually just reviewing the Day Dream pool area at the M Resort.
What I like:
The lounge chairs are not bought and paid for, I went to Marquee last weekend and everything worth sitting on had a high dollar value. At the M you can grab any available lounge chair without having to pay a fee for it. From what I understand the cabana prices are not that bad either, and being a local Las Vegan everybody knows the difference between strip prices and local prices. Great atmosphere, the DJ spinning on Labor Day weekend was great and it's definitely not quite as much the "scene" as the strip area pools are which is a welcome change for locals who just want to chill. It can get crowded so come early if you want a chair but otherwise a fun day spent. Oh and it's 21 and up.