It was a very nice stay and the location is just great. 10 minutes to the Colosseum and you can take a nice walk to the Vatican and pass by the fountain of Trevi, the Pantheon and the Piazza Navona with no problem!
It was an awesome stay on the boat and me and my girlfriend enjoyed it very much. By the way, the breakfast is definitly worth the money! And the atmosphere is just unpayable, its quiet and you still are close to the main train station and the tourist attractions.
It was a very nice hostel with a pretty good location. The staff was nice and helpful and the W-lan connection was excellent. The prices were ok and you could pay in euros too.