My stay at Oscar's was fabulous. The apartment was complete with all amenities you would need for a comfortable stay, and plus points on having a washer/dryer and air-cond to beat the unexpected heat in April. Apart from that, the apartment is actually located in a quiet location so we had a good night sleep. It's also very walkable to all attractions in Madrid, about 15 minutes max. I did not meet Oscar in person as he wasn't free during my check-in time but he very nicely arranged a friend to help us with our check in, which he accommodated to be earlier as well. He was nice enough to let us leave our luggage as we had a later flight out of Madrid. All in all a wonderful stay!