I have to say, I'd heard a lot about Le Cathedral as a place to learn and see tango but must admit I avoided it at first as I thought it would be overrun by tourists. However - I must say - it really surprised me with its authenticity, cosy setting and great tango lessons.
When visiting Le Cathedral, you're also buying into the stereotypical Buenos Aires (in a good way); tango, red wine and traditional music that will draw you into a world that is quite different to anything else you would have experienced.
Take the tango lessons that offered at the start of the night - even those with two left feet will enjoy them.
Mon-Su: 18:00-04:00