I haven't been this disappointed since I found out that Santa Claus wasn't real.
Hakkasan is a lackluster combination of Tao and Marquee's Godawful stairs...except there are more stairs and passageways in this labyrinth of a club. If you've ever clubbed at the Grand in SF, then the you should be familiar with the circular lay out. It's almost the same (referring to the EDM side only) except with an extra floor or so. They do have plenty of bars spread around so that in itself gets a star.
Speaking of that, after i bought a drink from the bar on the right corner, I turned my head to see a what seemed like a 200+ lb black guy swapping mad spit with a skinny little white guy and grabbing each others...ugh wtf!! Almost yacked in my drink...I want my money back for mental scarring! I'm jk but seriously no one should see that. Another weird incident happened shortly after, we went down to the hip hop room and I got randomly attacked by someone who looks and talks like Steve Smith from American Dad. He came at me mumbling God knows what and I had to push him away 2 times before he turned around and started chasing 2 girls that just happened to walk by. Seriously, what kind of people are coming here!? Wtf!
Besides that nothing else really stood out (except seeing the people next to us rolling balls which was hella funny), the Vegas night club vibe wasn't there, and it just seemed like an expensive rendition of a Chinese karaoke spot with famous EDM artists playing in the center of the room. Dance floor is tiny so forget trying to get close to the "stage".
Maybe I'm being harsh (it's only been open for 2 weeks) but XS, Marquee, and Surrender is still better IMHO. I don't think I'll be coming back anytime soon or if ever.