Leti is a great host and the Costa Rica house is an excellent alternative in BA.
Leti went out of the way to help and guide us through BA. The house is located in agreat area with the best and most trendy restaurants around the corner.
The only element which was a negative surprise was the amount of construction around the house. The neighborhood is developing FAST! That means that on weekdays in our case you would have a lot of construction noise starting early. I recommend checking if that is the case when you go.
Asides from that the place is excellent!