Good, central location with a Metro station within 5 minutes walk in either direction.
However, the hotel itself is a little tired and dated and definitely feels more 3 star than 4 star, especially given the lack of facilities (no bar, no room service, no dining other than breakfast). Breakfast itself was the usual european fare (bread, meat and cheese, pastries etc) with the typically poor attempt at bacon and eggs and not an English tea bag in sight!
On the plus side, the staff were all very pleasant and accommodating and the beds were comfortable but, although it was good value for money, I’ll probably look elsewhere the next time I’m in Barcelona