This place was everything we were hoping for. The little suite was super cozy, the shower was amazing, the bed was comfortable, the lighting was cool, the jacuzzi was incredible. We couldn't quite figure out how to get the hot water working for it, but it was still a great place to soak and watch a rainstorm outside. It was so quiet and isolated as well, we never heard another human being from our room.
Breakfast was decent and delivered to your room, and if you eat dinner here, it's FANTASTIC! It takes some time because they make everything by hand, but they were seriously some of the best meals we had in Costa Rica, and absolutely so friendly (as was the entire staff).
Note that it's part of the Brisas Arenal property, so that can be helpful for giving directions.