The flat is located right in the center of Madrid which is great for walking and going out at night. The only thing is during the summer it does get quite hot so one AC for the full flat is not enough (lifehack: leave all windows and shutters down when you leave for the full day with the AC on). Other than that, the communication is great, the flat is very modern, everything works (we did a few loads of laundry and cooked in the flat).
All in all, would recommend :)