Surrender at the Encore is the colorful offspring of the classically gorgeous XS at the Wynn. They are somewhat different, very much similar, and both amazingly fun and exciting nightclubs. Steve Wynn has got this nightclub thing down!
I've been to both numerous times, and always had so much fun. The music at Surrender is better than XS. The flashing colorful recessed lights are pretty cool. They remind me of the lights under cars in Fast and the Furious, except they're even better than that - they flash to the beat of the music.
There are walkways across the water for you to real-life practice your modeling skills. There are two tent-looking things structured from poles that are perfect for you and your cute girlfriends to practice your Vegas moves! Caution: You may earn a crowd, and you may be photographed. (i.e. don't go commando!)
My advice is to get there early, like 10:00, or it gets really difficult to get in without table service. Cover is usually a little bit less than XS ($40 instead of $50 on a Sat. night). Even better, get on someone's guest list, or find a Shuga Mama with a table to court you!