It's convenient only for its location, 150 metres away from Plaza Catalunia. Otherwise, mind the time you arrive, as there might not be anybody to do the check-in, so contact the hostal to find out. As to the room we had, very basic, a shelf on top of your pillow can be a danger when waking up in room 2; just one socket, and in the bathroom, plus you need to have the light on for your mobile devices to get charged.
In fact, too basic for its price, unless you choose it for its location.