Marquee is pretty hot. I would've given it 4 stars, but the place is so teeny and gets packed pretty fast.
Finding the pool was a challenge (as I didn't realize the Day Club and Night Club were one in the same), but once there, it was great! The bartenders are pretty fast with getting you your drink order and they're friendly. The vibe of Marquee is awesome. The music rocked. Drinks are on the pricey side (of course, it's Vegas).... coming in at $14 per cocktail on average.
The pool itself is pretty small in comparison to others, so be warned that if you want to get int he water, go early to stake your spot. Also, seating is not even an option. If you don't have a cabana or day bed, you'll be standing the entire time. There's not a lot of room to move around, so expect to be a little cramped.
I'd definitely come back... if I had a cabana or day bed.