The appartment is absolutelly fabulous and Sol is excellent host. I have been several times to Madrid, and this was by far the best experience. The location is great, in good part of the town, close to tourist attractions, metro, supermarkets, yet very quiet and secluded. The balcony offers amazing views, even of Palacio Real. Very romantic, especially at night! The beds were comfortable, kitchen modern with all necessary utiensils, bathroom clean, bit on the small side, compensated with an amzing view! The decor was so tasteful and offered a bit of individual touch, just enough to feel us 'at home' and not 'intruding' one's home. Stairs were a bit of a challenge first day, but we got fitter and we needed to burn all that jamon and hot choc anyway!
Sol is a great host, from a suprise pick-up from the airport, a big hug, giving us the instructions and tips about the place, organizing taxi to go back. When we mentioned that we want to go to Parque de Attraciones and Telefferico, she remebered that she had some discount coupons and delivered them the next day. She replied promtly to any queries. WiFi was playing up a bit, but we managed to look up things, while keepings kids away from being glued to these all the time :)
I highly recomend this place and looking forward going there again some time