Excellent location. The neighborhood is beautiful and a 5 minute walk to the Metro. From the metro you are 2-3 stops away from all the sites. The immediate neighborhood has great shops and restaurants and is just nice to take a stroll in.
The apartment itself is decent and looks like the pictures. It is a bit small but we stayed in the winter and did not utilize the terrace as living space. If you come when it is warm the terrace is like an extra room. Two of the bedrooms are a good size and the third is small. Nice kitchen. The terrace is amazing and I wish we had been able to use it more. The staff is responsive and helped us check in off hours and extended our check out time. (Late check out may not be available during peak season).
Overall, the location is about as good as it gets and the apartment itself is quite nice.