Great crowd, Great drinks, Great Decor and certainly a place I have always gotten into trouble.
I used to come here quite a bit when I lived in Vegas. This is still a great spot to chill with friends when I visit. The only downside is parking (you must valet your car). Although not a huge deal, it's a pain.
The vibe here is great. The bar and decor is simply amazing. The other yelper who said it's like the Haunted Mansion is correct. Overall, the place is very dark and has interesting touches all over the place. I have come here a couple times during the day for a drink and love having a quiet place with great drinks. At night, it's an interesting crowd, and indeed you never know what your going to get. I have met some interesting creatures here for sure. The drinks are huge and well priced. WORD OF WARNING: BEWARE OF THE ABSINTHE MARTINI, it will mess you up.
I have stayed the night here (see my warning above). The rooms are cute. They are artist themed. Come with great robes and have a clawfoot tub. I would stay here again, if I just wanted a night away but didn't want to be on the strip.
Overall, a great spot.