A great apartment in a great location. Despite a 5 hour delay in our flight, our hosts stayed up until 02:30 to greet us! Furnishing us with all sorts of tips and advice for things to see and do during our 5 night stay they could not have been more welcoming. The location of this apartment is pretty close to perfect for the centre of Madrid, but not exactly "next" to the Plaza Mayor which is 4-500 yards away, but pretty well in the centre of the centre. The bedroom with spacious ensuite bathroom is peaceful, with no street noise at all. A small niggle would be nowhere comfortable to sit in the bedroom, and as the living area is a single (quite fantastic and wildly beautifully decorated and dressed) huge "L" shaped room, it might have been hard to find some privacy had our hosts not actually been away for the rest of our stay.
That aside, this is a really great place to stay and enjoy what Spain's capital has to offer (which is a lot!! so pace yourself and get into the siesta groove, it makes best use of your energy.....).