I had fun at Hakkasan, but only because Tiesto was performing the night I went and I thoroughly enjoyed his set. Other than that, I would have to rate my experience here as "meh." It was just stupid crowded everywhere you went. Like you can't walk without grinding on other people who are just standing there looking at you right in the eye making things super awkward as your balls are brushing up against their ass or something....
While trying to find a good spot to camp out where we can get an unobstructed view of the stage, we were constantly shooed away by the security guards with their flash lights like they were shooing away an annoying fly. Here's the crazy thing, there were LOTs of other people standing in places blocking doorways and walkways and they didn't shoo those other people away. Sure, shoo away the good looking people! Lol. This place is a huge fire hazard if there ever was one!
Drinks are mad expensive, as expected of any place in Vegas that isn't in the casino.
All in all, like other reviewers said, the experience is how you make of it. If you're going to see either Tiesto or Calvin Harris, you'll have a good time listening to their sets, but everything else.....ehhhh I'll let you be the judge...