I can see why people like this pool, and I can see why people don't. The crowd will definitely depend on the day- and you should definitely pay attention to who is performing to determine whether this will be the pool for you.
A girlfriend and I went on a day when Tyga (hip hop artist) was performing. We're hip hop fans, and we got comped so that was cool with us- the music fit, and we knew what to expect in terms of the crowd. I can see how someone else, less familiar with that artist might be frustrated with the experience. The actual performance was maybe 20-30 minutes, toward the end of the day (maybe about 5pm), but the real action was just in people watching. Drinks are expensive, but that's to be expected, and if you want to have a better experience, you'll need a cabana or daybed. That's typical for most venues, though.