We were the only ones there during mid-Sept, but the staff were so gracious and helpful that I'm sure that they would be the same regardless of the bed-nights. Rustic, but not primitive despite the location. The views were wonderful, and we greatly enjoyed bird-watching with Pedro, yoga, cooking and just relaxing in the evenings. Getting there from Guatemala City can be pre-arranged and takes about 3 hrs to Panachajel, from where you catch a water taxi to Sumaya. There are cheaper places to stay, but you can rest assured here!