I've passed great moments in Etnico Eco Hostel.
There were few people hosted there and we had serenity to relax during the night and proximity from the main street to get there early in the morning. There is good places in the surroundings.
The staff is very helpful and do everything to make you feel comfortable.
The dorms are a little cold, but it's not a big deal because they provide plenty of blankets if necessary.
You also have full access to the kitchen anytime.