David's place was a great place to chill and for my week "working from" Madrid. Excellent location (highly recommend Cafe Federal for nice coffees and breakfast).
The internet connection was great and it was nice and quiet so a great place to work from. The flat was comfortable and well designed - very efficient use of space.
David was easy to contact and was helpful e.g. with a slightly later check out. Would highly recommend his place for visitors to Madrid.