Daniel has a very nice apartment in a very central location. Its only a minutes walk to Grand Via and we did not need to use public transit for nearly our entire stay. Restaurants, bars and shopping are very close by and many really good ones within 5 minutes from the apartment. The apartment itself was clean and well maintained. The shower had great water pressure and the bed was quite comfortable which was very important to me. Daniel himself was very nice and offered places to visit and a map for us. The apartment also had visitor guides, etc. The air conditioning in the apartment was very cold and although the unit itself was quite noisy, he sent out somebody to fix the issue very promptly.
There was not much in the apartment as far as extras. There was coffee but no creamer or sugar I could locate. No toiletries except for toilet paper. Soap or mini shampoo bottles would have been nice. An umbrella for guests would have also been quite appreciated.
Some other things to note: The location is great but those with families may want to know that there are two strips clubs very close by and various "ladies of the night although they were not bothersome" This personally didn't bother me but I feel is worth noting. Also there are restaurants below the flat and it gets quite noisy, particularly between the hours of 8-12. Garbage trucks are frequent as well. But I did not have difficulty sleeping overall.
Overall, Daniels place was very good and an excellent value for the money. If I was to return to Madrid, I would not hesitate again to use his place again.