Brasil's (
http://www.brasilsnightclub-philly.com/)
Men: $10 cover
Women: $5 cover
Before going: I've heard it is less sketchy than Cuba Libre.
CL can get somewhat uncomfortable for the women in a group...
06/18/2010 @ Cuba Libre
Cuba Libre doesn't exactly mix up the songs.
You will have about 8 well blended salsas (depending on DJ), 8 well blended reggaeton, 8 well blended merengue, 8 well blended bachata, then start the salsas again, followed by more merengue, etc, etc.
Some interruptions for performers. Usually pretty good performers and don't take too much time out of your dancing.
Reggaeton usually turns into a dirty dance floor--make sure you are with someone you know!
Expensive :( drinks, very seldom specials. BEST MOJITOS!! So many flavors!