It was an amazing experience, I've really loved the time i spent in Dom Preguiça Hostel. The owners, André and Guilherme, are great, I became part of the family and enjoied not just the working time but my free time as well, the hostel organize boat tours in the nature and the place is wonderful. I would go back now!
Don Preguiça is a nice place to stay. All the crew members are very easy-going and helpful, and will be glad to help you with anything you need - be it about your duties as a volunteer or about things you can do in Alter do Chão. André, one of the founders, is a very smart and calm guy, and he makes it even more pleasant to stay in Alter. He even took me and other guests to hang out in his Kombi and visit places nearby the hostel. We had one barbecue and a few happy hours as well, which was very fun. Great experience!