Had a great stay at Burgos 21! Very practical electronic check-in, spacious fully-equipped kitchen, renovated room (felt like we were in a hotel), fast Wi-Fi (so perfect for working) and great communication, Gonçalo was always helpful and quick to respond.
The only two "minuses" were that our room didn't get much light exposure as it's located on the lower floor and that it's around a 40 min. walk to the center (but only 5 min. by Bolt/Uber). HOWEVER we were aware of this when booking and it was definitely worth it for the price!