I had a good stay at Eduardo's place. He is a very nice person and willing to explain/suggest things to do in Madrid. He prepared breakfast for me on the last day. Both Eduardo and Sole, his girlfriend, are nice.
The location is great. Just a few steps away from Delicias metro and Museo Ferrocarril. The room or the whole place look exactly as described on the page.
I will have little doubt to return to this place and would recommend this place to others.