Very central position in the city, you'll get everywhere by walking in no time. The room is cozy, equipped with everything (incl. city map, tourist guide book in English, metro-map, hair drier, etc.)
Ulises was very helpful and nice, flexible in time.

We've had a real good time, I'd recommend Ulises' flat for everybody, who's not scared of climbing up to the 4th floor! :-)