Lili & Maty are very nice host, and they will offer you a warm weclome. Their house is perfectly located, near the buses, the subte, and of course, Palermo if you want to go out. The bed is probably the most confortable one I got in Buenos aires !
But if you need a quite place, or to access your room many times in the day, with the yoga classes, it is probably not the best place for you.
I would recommend this place