Legal Brothel not a Strip Club.
How this works is you'll pay 250 pesos cover to get in and get a slip for a "Sexy Dance".  The mesero shows you to a table and takes your drink order.  Pretty soon, a lady will come by to sit on your lap and talk.  If you speak Spanish, makes it really easy.  The mesero will stop by to ask if you want to buy the lady a drink.  You say no, she'll go away - eventually - and will likely ask for a Propina.
A drink will cost 375 pesos and she will sit and talk a bit longer - until her champagne (apple juice with a cherry) is done.  If you ask, she'll do her "sexy" dance.  Kind of an air dance and she'll maybe show her tits for a few seconds. 
If you want to see someone else, just say so and she'll go away.  There are privados for lap dances naked - 1250 pesos? - and maybe oral.  You can get a Champagne Room for 4,000 pesos or a 30 minute room for sex - 30 min.  At today's exchange rate it's $250USD for a trip to get laid.  Although the official exchange rate is about 18 to the USD, this club uses 16.  And that might go down as the dollar dives.
Girls do two song sets on stage.  top off on second song.  
All in all, things are really really tame compared even to a T&A club in nearly any city in the US.  The draw is the ladies are there to take you upstairs for nookie.  And they will ask for an additional propina.  Count on that.
Keep in mind that all the transactions - other than the personal propinas - are through the mesero.  If you ask the lady about anything, she'll tell you to talk with the mesero.