Excellent location in the heart of Madrid, very well connected via public transportation, and lots of good quality restaurants and pubs nearby.
The flat is spacious and looks recently renovated. Carlos gave us clear instructions for our check-in, which was a breeze, and he made it clear he was always available if we had any questions or problems. We had a wonderful time!
Now, on to some things that can improve:
Bed sheets and towels looked old and didn't smell like they were recently washed. The rooms were a bit dusty, and the overall level of noise was a bit too much (although we understand that this is because of the location, but the windows do little to block out the sound). Other than these things, it was great!! Thank you Carlos and Daisy!