I went to Hakkasan Nightclub for the Calvin Harris show. We purchased tickets online before coming to Vegas. We arrived early, didn't have any hassle getting into the club. Hakkasan Nightclub has different rooms playing different music. That's a great idea IMO. I went to a few of the rooms (each room was cool). The club has some cool décor. The Calvin Harris set was packed like sardines. It was impossible to move any way without bumping into someone. I been to XS on a packed to the max night (David Guetta) and it wasn't congested like this. I know its Vegas but cramped with no space is not cool IMO. Calvin Harris gave a great show! The warm up DJ did a good job as well. This experience for me was definitely "meh". I personally wouldn't come back for a special show. I might (huge might) come back on a normal night. I give Hakkasan Nightclub a 2.5 rating.