Casa Marbella is situated right in the middle of the Tortuguero village. Rooms are simple but clean. Outdoor terrace right by the river is the best spot in the whole of Tortuguero for a good drink and relaxation. I didn't get to meet Daryl Loth who owns the place, but his help before booking and later when he was sending us forgotten accessories to San Jose was outstanding. Don't pay more then you need for tours and accomodation - Marbella is a great option for demanding but budget-conscious travellers. Cons - maybe a slightly more varied breakfast would be nice, but for the price we got more than we deserved, anyway.