I went to Hibiscus on a party of 4, they gave us a very rustic but nice room, with clean bathroom, the pool is very small, just the 4 of us felt like a bunch of people. It has a good view of the ocean, is beach front and they have a seating aerea in front of the sea, but there is a reef, so you cannot enjoy the beach there, you have to go out, and walk a few meters to go to Playa Negra. If you are going to the National Park is better for you to rent a bike, 'cause the hotel is very far from it, and the beach of Cahuita National Park is the best.
Overall I enjoy my stayed there but it is very far from the center and ther are no restaurants near by.