The best thing about this place is the location, in the center of Madrid, within walking distance of many sights. There are plenty of markets, bars, restaurants and other conveniences in the area. The building itself is a little older and has been renovated to host a dozen AirBnBs, so if you are a light sleeper, bring earplugs since the internal sound insulation is not great. However, there is very little sound from the street, which is very good for central Madrid. The place is very clean and comfortable. If you plan to cook, you will need to bring all your consumables, as the agency that manages the place does not provide even basics like salt or cooking oil. The agency is helpful and responsive, we changed our dates twice and they were happy to accept both times. Overall, a good base from which to explore the city on foot.