It's been a few months since the expedition and I still find myself thinking about it (and keeping in touch with the other volunteers). Blue Ventures did a great job of making sure there was something for everyone (like interactions with the locals, a visit to a manatee rehab centre, a tour of the local village/cenote/bat cave, and amazing diving, of course!).
The cabanas we stayed in were surprisingly comfortable, and we got to wake up to the sunrise every day (and no bugs!!). Diving was done 1-3 times a day, and the rest of the day was for relaxing, data entry and other tasks, and some of the most intense volleyball games you will ever experience.
It's a huge investment in terms of trips (I'm very cautious about the programs I choose), but I assure you BV is one of the most reputable, conscientious, and exciting programs out there.
I surveyed a number of exclusive diving sites, logged 50 dives, became an advanced diver, met the most amazing people, and developed a passion for Belizean fry jacks. Highly recommend!!