Myself and two friends stayed at Daniele's place for 3 nights - we had a fabulous time! The location of his apartment is - honestly - superb. It's close to everything you could possibly want to see in Madrid. I would fully recommend Daniele's place to anyone thinking of going to Madrid in the near future. The only downside of the apartment is that there are a number of stairs to walk up and no elevator, and the bathroom is very small - but this didn't have an impact on our holiday at all.
Thanks for such a great stay, Daniele! Hope to see you again soon!