I think Haze was pretty mediocre for being in one of the newest resorts in town. No view like the Palms clubs, no pools, waterfalls, or glam ambiance like the Wynn/Encore clubs.
Built on 2 roomy levels, the dance floor gets quite crowded. If you get a table on the second level, you do get a lot of room and comfort though, but just no luxurious ambiance - all just dark black curtains.
The service was outstanding though and all the ladies who work at the tables are very very attentive. So if you get the table and you're with good company, you'll have fun at Haze regardless. The complimentary Haze club passes are also really complimentary - yes even for guys (unless you get the ones marked complimentary for ladies/reduced admission for guys).
Overall, nothing to rave about - go if you have a table or you're staying near the vicinity of the Aria - otherwise, go for XS/Surrender which have managed to stay up top, or the new Marquee at Cosmopolitan next door.