Rocio & Nicolas's place was awesome! The location is near many different key places in BA. And, the subway is very close as well. She makes sure that you arrive and there is somebody waiting for you to let you in. Also, they are flexible with check out.
I highly recommend them for your next visit to Buenos Aires!
Also, they give you many key details about the various activities, restaurants, and olaces you might want to check it out during your stay. I recommend a Sushi place just 2 blocks away from their place. You will need to call or stop by to make a reservation, but luckily we just showed up a Monday night and they let us in. The sushi Restaurant is Tenkuu Sushi. Have fun!