Hands down my favorite night club in Vegas! Large venue, nice music selection and very detailed and interesting inside decor. I really liked their outside pool. It's super cool to hang there at night and you will also be able to find places to sit. If you are a conversationist, you can definitely hold a decent conversation by the pool without needing to yell at each other.
The promoters could be rude since they are very popular and there are many people who would like to get in. One time, one of the promoters totally ditched us and we couldn't get in because there was some famous dj playing there that night. We were all pissed but the next night, it was very fluent and we got inside pretty early when it was not so crazy yet and we stayed till it closed. So it really depends on the night and your luck. Yesterday zed was performing there. We thought it might be too crazy and too crowded so we didn't go. In hind sight I totally would have ditched hakkasan for xs!