My partner and I are digital nomads and we worked form Alejandro's apartment for 5 weeks. The internet connection is very fast (11 ping, 80+mbps download speeds) and there are many different "work spaces" so my partner and I felt like we had our own offices.
My favorite part about the apartment is the awesome balcony. I would spend most my time working or chilling out there as the view is awesome and you can hear the sounds of the city and smell the awesome food coming from all the restaurants around.
The apartment is in a great location, I was able to walk to a tennis club (Cost Rica Tennis) every morning as well as tons of restaurants, coffee shops, and bars.
10/10 would stay here again!