I had a really wonderful time staying at Eduardo's place. It's very conveniently located, Puerto Madero and San Telmo are just few minutes away on foot. The area is very safe and I had no problem walking alone at night.
The apartment building is very new and secured. It has many facilities such as gym and a very nice pool area.
Eduardo's apartment is also very clean and tidy, it's exactly what it looks like in his pictures. What I enjoyed most staying in his apartment was the opportunity to watch the panoramic view of Puerto Madero, especially during sunset!
All in all I had a really pleasant stay in this apartment and I hope I can stay here again on my next trip to Buenos Aires! ;)