As others have said this is a pretty average hotel - average breakfast, security, and internet. We got an interior room but it was pitch black (and quiet) at night so we slept very well.
The internet didn't work for one iPhone but an android phone connected fine. Go figure.
Breakfast is a little cereal (one type), bread and jam. There are packaged pastries but they were squished and no one wanted them. Juice, coffee, hot cocoa and tea. It's not bad.
The best is location, it's easy to walk around or see/do anything from the hotel.
We were very pleased with the location of the room and the service. Our room was spacious and clean. We were on holiday with our dog and we were happy that she was accepted by Bilborooms.
The breakfast is nothing to write home about but it was nice to have available.
It's located in the old city centre but it was so quiet in the room itself that you wouldn't have known that. There were many different faces at the desk, opening the front door for us (you leave your key) but all were friendly and professional.
Not the easiest of places to find, big sign on 1st floor but ideal situation for old City. 24 hour service at desk, we had no problems coming and going. Great room and the breakfast was adequate, you also get to meet nice people in the breakfast room. Would stay there again with no hesitation.
The pension is a bit difficult to find until you know the system. There is no large sign outside - just a little plaque above the door and a sign on the various bell-pushes to indicate it is on the first floor.
It is in a block with other floors having private accommodation.
Beware the walk up the the first floor if you have much luggage.
However, once found, it is in a good position in the old town of Bilbao.
The room was small and could have done with a general paint-and-spruce-up.
Breakfast was d-i-y (including washing up.)
So, in a way, it was more like a hostel.
Nevertheless, for a pretty low price in the centre of a tourist district it was not bad value.
Just don't expect too much.
Stayed there for 1 night, unfortunately for us all nights were sold out, otherwise we would have stayed there all nights in Bilbao. Very friendly staff, our room was refurbished and in mint condition and had a big balcony. Since it's located right in town in a very busy street (no cars) at night can be quite noisy. Basic breakfast, small kitchen, but don't need more since you have lots of cafes just on that street.