The team who looked after the booking were extremely helpful and very quick to reply. The apartment itself was in an excellent location - it was very quiet at night but in walking distance to all of the main attractions.
The apartment was spotless and looked as though it had been recently renovated - very modern bathrooms with a great shower!
The host was there to meet us when we arrived. He gave us a map - which was really useful and was happy to offer recommendations of the best things to see and was very helpful.
The main train station directly opposite the apartment also has luggage storage so if you check out at 12 noon and then need to store your bags somewhere then this was very easy and really cheap too - 5 euros to store 4 little suitcases for the day!
All in all a lovely apartment with great hosts - thanks for making our stay in Madrid so
enjoyable.