Good location to explore Madrid. The host was kind enough to allow an earlier check in. They provided clear instructions so the self check in was straight forward. It is less than 10 mins to walk to Plaza Mayor and there are a lot of eating options around the neighbourhood. If you are arriving in Madrid via the Atocha train station, it is only about 10 to 15 mins taxi ride to the apartment. There is also a Carrefour just round the corner if you need to pick things from the supermarket. A bonus is they have Netflix :)