I can say only the best words about our stay at Mike's place. Great location - most of Madrid museums and sights are within walkable distance as well as the railway station and it is also close to 2 different metro stops. Very clean, very comfortable (we both loved the beds!). Mike found us in the street when we kind of got lost. Wonderful host - ready with advice and having everything in his apartment. Having A/C helped a lot even though it was not too hot but we appreciated it a lot.
We are also very grateful that Mike was so flexible and we were able to leave our bags very early in the morning.
We definitely would love to come back if we go to Madrid again.