I just spent two nights in Farid's apartment and it was great. #1 was his communication. He always responded quickly. He always had an idea (like where to go or how to get there). We may speak two different languages, but he has a great sense of humor about it and we made along just fine.
The apartment is minimal - no frills. But it was quiet, the curtains made it dark enough to sleep, and between the deadbolt on the door and the lock to the apartment building itself, I felt safe as a solo female traveler.
San Telmo itself was a lot of fun. Very walkable (wear comfy shoes... cobblestone looks cute but it is killer!) You need to try the food at the San Telmo market - they had the best empanadas!
Thank you for your hospitality, Farid, and for sharing your lovely part of Buenos Aires.