I had a fantastic stay at this hostel. Don't be scared off by the bar on the main floor, you can't hear it in any of the rooms. :)
The atmosphere and character can be described in one way, scattered. However the beds were comfy and bedrooms clean. Probably will splurge for a hotel the next time I am in Annecy though.
It's a very large hostel, that takes on school groups. Be prepared at the end of the day for bus loads of students running around. However, there breakfast is great and they have a good soup and salad deal at dinner. Also the staff is really friendly. :)
It wasn't too far from the city centre, anyways it's worth giving up a little location to stay on a boat. Staff was helpful and friendly and I had a wonderful stay there.