Revolution is certainly a good choice if you're just getting in to Vegas around midnight, finally get out on the strip by 1:30am and you're trying to go dancing with a co-ed group without having to spend $50+ on cover each and having to battle hour long lines. I saw several promoters on every edge of the casino generously giving out cards for free entry (female or male) all night.
Though this a lounge, I found the dancefloor spacious and the bar was very accessible. Space to dance, some cushioned tables you could chill at without paying for bottle service and the tables that do have bottle service have touch screens with psychedelic designs and animations you could play with for hours. The music was generic top 40 mashups and the drinks, well it's Vegas, so nothing far from the norm.
Besides the retro/mod decor, there was nothing else that screamed "Beatles". Worth a visit if you're looking for somewhere to just go, dance and drink in a jam.