I must have come here on an off night (it was a Sunday night), but I cannot relate to the majority of the reviews for XS. The club opened at 10:30, so we got there early to avoid the long lines; we also got passes from a promoter on the strip so we didn't have to pay cover. My first impression was that this place was absolutely gorgeous; the pool and bottle service tables looked amazing, the dancers were impressive as well. The only problem was that the dj wasn't very good; there were only about 20 people dancing even though the entire outdoor pool area was packed with people. I came here to dance, and I tried really hard to enjoy the music, but it just wasn't happening. Needless to say, we left early.
The ambiance and staff definitely deserve 5 stars, but the music killed it for me, at least for a Sunday night. I'll probably give this place another chance in the future for a Friday or Saturday night.