This is a field station of the Organization for Tropical Studies, where scientists, students and volunteers conduct biological research. They offer available rooms to guests, along with full board. Rooms are small but comfortable for their basic purpose. Bathroom very small but adequate; plenty of hot water for showers. Food was plentiful and very good, plenty of salad, vegetables, and vegetarian options. No alcohol.
Anyone looking into lodgings here is presumably interested in the birds and/or plants, as many species of both are found here. The station is located in Wilson Botanical Garden, so you need only walk out your door to find what you came for. A guided walk is included with your stay. and is very informative.
If you want to stay here during the high season, you would be wise to inquire at least 6 months in advance. I inquired in September about availability of 3 nights in February or March, and at that time they had only two such slots still available.
This is not the least expensive lodging available in the area, but with all meals included it is good value for the money, and you can feel good about your dollars going to support OTS' good work.