we stayed at Eurostars Mitre in nov 2010 for a few nights. despite our initial concerns, the hotel was in a great location. it is in a very quite residential area of the northern part of Barcelona.
on foot, it only takes 3 minutes, literally, to the metro station El Putxet. from there you can be in the center of the town (Catalunya) in about 10-15 minutes on line 7 without having to transfer.
good amenities all around, smallish bathroom, however. helpful reception staff for any questions, restaurant recommendation, logistics, etc. they spoke good english.
i do not recommend their breakfast. 10 euro per person per day is rather steep for what i consider to be continental breakfast of some pastries, coffee/juice, etc. there are plenty of other tastier, cost-effective options in the neighborhood.
i would stay here again, if i am back in Barcelona.