I heard about an event hosted by Tango Chicago for last year's valentine's day. We signed up for a 2 hour lesson on Tango. The instructor, Al, was very friendly, in fact overly friendly, but they gave a great introduction, we were able to do a couple of moves by the end. It really was fun and they made us feel that we could learn the tango which seems very difficullt when you see it done. I believe this group has a lot of tango friends and goes out to different clubs every week, so if you really want to not only learn to tango but actually dance the tango in public, this is the place to learn.