We loved staying here. The location is fantastic - really central with loads of lovely bars and restaurants. And if you like markets you are really spoilt for choice - there's La Cebada in La Latina, San Fernando in Lavapies, and of course the very pretty San Miguel which even in November was full of tourists (we actually preferred San Fernando though, much cheaper and more authentic. And if you're here on a Sunday El Rastro flea market is at the bottom of the road.) You can easily walk everywhere, including the museums. In fact we only took the metro to and from the airport and on one other occasion to a restaurant that had been recommended to us a couple of miles away. Apart from all the sights, which you don't need me to tell you about, do spend some time just wandering round the streets of La Latina and adjoining Lavapies - there's something lovely to look at on every street.
Apart from the location the flat is itself is just great. It's in a wonderful traditional old block but inside everything is new and clean as a whistle (and there's a lift which is good as it's on the third floor.) It's compact but has everything you need and is nicely thought out. The bed is really comfortable and the shower is good. Nice big fridge if you wanted to buy some of the wonderful produce available in the markets though we were too tempted by all the lovely tapas on offer to do any cooking. Also, although it's in a really buzzy area the flat itself is SO quiet, especially at night which we really appreciated.
Antonio was really friendly and helpful. Our evening flight was delayed so we arrived later than planned, but he was completely relaxed about it, and similarly, as there was nobody coming in straight after us, he was very happy for us to leave our bags at the flat on our last day as we had an evening flight.
I can't think of a better base from which to explore the beautiful city of Madrid. In short, great city, great flat, great host. Thank you Antonio, I hope we can come back another time.