We (couple) stayed in Pablo's apartment when spending a week in Buenos Aires. The apartment was lovely and I would certainly recommend it.
The apartment is clean, fully furnished, well equipped kitchen. The building is nice, with gym, sauna, sun deck and laundry facilities, although the pool and jacuzzi were closed during our stay (building closes them it from April until November).
Its in a lovely area (felt very safe), across from a new premium shopping outlet which includes some cafes and restaurants ... and loads of great cafes and restaurants nearby and throughout Palermo.
Pablo was a good host, gave us good directions in advance, met us on arrival and showed us everything in the apartment and building.