Perfect buenos aires stay. Marcos is very responsive and available to help me almost all the time which is very beneficial. The location is perfectly situated near the best restaurants and night life. The room is on the tenth floor of a high rise giving you a fantastic view, nearly unobstructed all the way around. There is a phenomenal view of the sunset. The place is very clean, modern and perfect for two people. WiFi is strong, there a kitchen, community laundry, and rooftop pool/gym. Can't ask for better, just perfect.
In terms of transportation, you are about 5 blocks from subway station Palermo on line D. More convienent is taking an Uber directly from his place, you can call one via wifi then just go downstairs. Uber is the way to go, even going to the airport on ur day out. But try to arrange ahead of time as there are not that many drivers.
Recommend las cabañas local restaurant two blocks away, for bife chorizo. It's relatively cheaper but u must arrive before 9 to avoid a line out the door. LA Mar is expensive but good Peruvian, but go to Bardot Peruvian for the best ceviche I've ever had outside of Peru. Go to Puerto Madero for a nice evening stroll and stop by hotel faena for drinks, call ahead they can have live bands. They also have a very intimate tango show.
Ranking my trip 1) cementario recolecta, 2) teatro colón 3) puerto madero/hotel faena 4) chinatown/tigre 5) eat like a pig