I've stayed in the Hostal Barrera four times over the past year and a half. My most recent stay was in August and I highly recommend it as you see in my
review .
The location is ideal, the rooms are up-to-date and quite comfortable, the price is right, and, as you have already discovered, Nieves (not to mention her friendly staff) is a doll.
If you have any questions, feel free to let me know.