Luis Alberto's apartment is very very comfortable, super clean all around and the location is truly perfect right in the center of it all.
Madrid is very safe and this area is no exception. Very quite area for sleeping and still withing seconds of the Grand Via. You are at a five minutes walk from Puerta Del Sol. Also walking distance from there is the Mercado San Miguel where you can eat all kinds of tapas and taste great wines and other drinks. Closer from there is Plaza Mayor where you can sit down and relax, have a cup of coffee and feel the sun on your skin. Here you can do a lot of your shopping, carry it all to Luis's apartment and then head down the other direction justa few minutes walk to Chueca and other interesting places.
I highly recommend renting this place. Thanks very much Luis, if I'm ever planning to go back I will certainly look for you.