Great location in the city center of Madrid, very close to the opera house and Opera metro station. Just a 5 minute walk there and 10 minutes in the opposite direction to Plaza de Sol.
If you do book here, check your email and messages often because the hotel requires you to check in online. In fact, you can’t even enter the building without the door code to the lobby and the hotel will send that to you. Unfortunately, our carrier Verizon had a worldwide outage the very day we arrived so our connectivity was limited to nil. We were standing outside the hotel, on a narrow street, in the heat, unable to enter because we didn’t or couldn’t get the code. Fortunately, the receptionist must have seen us on security camera and came over within a minute to let us in.
The check in process should have been easier, but it was lengthy and arduous. At least the lobby had WiFi we could use, but the hotel’s check in software required me to scan all 3 passports and was unable to recognize any text, so I had to type in everything by hand, three times! At last we finished and received another code for our room, which fortunately was ready to go despite our early arrival. Yeah, you’ll receive a code for the lobby entrance and your room. They will give you a key card, but that simply powers up the room when inserted.
The room itself was large with a mini fridge and hot water kettle. Cooled by mini-splits but we couldn’t get one to work. No view out the windows unless you like alleys.