The hostel is very well located, near the center of the action.
The room was perfectly clean. However, I guess we were unlucky, but our room was located directly in the lobby. We almost couldn't sleep, because we heard every conversation taking place there, people were talking very loudly. We could even hear all the «dings» on the phone of the employees, so I guess the door wasn't very soundproof.
So, if you ask for a room that is in a corridor, you should be fine! The quality is very good for the price.