Absolutely stay here if you are coming to Bocas! We were a group of 9 friends on graduate school spring break (we wanted something more adult than a hostel), and this was the ideal house and location for us.
The house is beautiful, clean, spacious, and in the perfect location. It is in the heart of Bocas town with access to restaurants and nightlife, and the boat attached to the house provides access to the amenities of surrounding islands. The deck off the back of the house has an amazing view--a great place for morning coffee.
Numar was also extremely accommodating. We hired a chef for the week, and she gave him access to the kitchen so that we could have dinner ready by the time we got back from the beach. Also, look into Panama Concierge. Jack (the owner) arranged everything for us and made sure we saw the best of the area. If you are traveling with a large group, I strongly suggest you work with him.