Excellent location -- close to two Metro stops, walkable from both train stations ( Sorolla is a bit farther), easy walk into the historic center, close to supermarkets. Very convenient for getting all around town easily.
My room was big, light, airy, had lots of shelves and drawers and a couple of hanging closets -- good for me as I stayed 3+ weeks (Oct-Nov). It also had a big fan, which was nice as the weather was still a bit hot when I arrived. The Internet/wi-fi connection is excellent. There are 2 bathrooms (one a half-bath, one large full bath with a shower), which is good as there are 5 guest rooms total, thus there can sometimes be a little traffic. The kitchen is very small but sufficient for preparing meals. Unfortunately, there's no common room or dining area, just a fold-out table in the kitchen. So space can get a little tight, but it somehow all works. A housekeeper comes in once or twice a week to tidy up.
Overall, I was comfortable there and enjoyed my stay.