My apartment is located in a very centric area in the capital, San José, called Los Yoses. There are many restaurants and bars close by. However, the place is enough to the side that there's no scandal from the music or the people during the night.
Getting to other places from here is quite easy, bus station is 500 mts away, from there you can get to the city center in 15 minutes.
Hope you will feel at home here!