I love XS.
Sure, it probably has to do with the fact that everytime we've gone, we've been on the guestlist, and always got in free and also with no wait at all.
But besides that, the venue is beautiful - inside and out. This is a perfect example of how you can maximize use of space and ambience in just one huge area, and not need to go from room to room to have a good time.
Great music, great vibe, great venue.