As an amateur in the tango business I hestiate to throw in a comment but we were in Rojo Tango at the Faena + Universe this week. There are two or three observations that come to mind:
A. We paid through the Park Hyatt $170USD each for the package that included private car transport to/from the show, the dinner and the show, all beverages and tips. It's not "cheap."
B. The music seemed "raw" to me in the sense that either the sound system was absolutely awful (a real possibility) or the musicians themselves were ...um...awful. The music bore no relation to any tango music I've ever heard with a complete lack of crisp notes, the transitions were poor and the entire effect of the music on our night was LOUD without being particularly effective or adding to the mood. The only word that comes to mind is "raw" as to the music and I like tango music. I've never heard any tango music the way it was played at Rojo Tango. Which may entirely be a comment on me rather than them.
C. The venue is small, and the floor upon which the dancers dance cannot be easily seen except from the few tables facing the floor or (maybe) from the tables at the very back of the room (if then--we did not sit there nor see the view from there) because they are elevated. Part of the pleasure of watching tango is to be able to see the footwork. We were unable to see anything below mid-thigh. That was very disappointing.
The food was good (but not great by any means) and the price for the dinner works out to about $45 and the show works out to about $US126. One or the other includes the transport. Our understanding is that you cannot buy the show or the dinner separately and no one would want to buy the dinner separately at that price.
Our driver came to the hotel 20 minutes early which can contribute to a sense of being rushed. We are not sure whether that was the fault of the hotel mistaking the pickup time or the tango program driver in arriving too early.

Mrs. Info requests that I report she liked it very much. I thought not being able to see the footwork (and I am over six feet tall so it wasn't that I am short) and what I viewed as "terrible" music or a terrible sound system significantly diminished the experience.