I stayed at Felipe and Pilar's appartement for a weekend with four friends. The appartement is very well situated in the city center of Madrid, very close to the Grand Via, Plaza Colon,... The check-in procedure was very easy and Felipe very helpful and flexible (concerning ao a mistake in our reservation and the check-out time), even if we did not meet him in person, but communicated via text messaging and phone calls. The appartement is very clean and could easily sleep up to 6 people. Even if situated in a very busy area, it is quite, since located in the backside of the building. I could only recommend this appartement for anyone wanting to stay in Madrid.