The apartment Arrate has is big and comfortable and in a very quiet street. The location, though not next to the touristy sights, is perfect because it is a 5 minute walk from the metro and has good connectivity. The place is clean and spotless, and would be perfect for a longer stay. Unfortunately we only stayed for a short weekend and could not enjoy the nice terraces (yes, there are multiple), but we can easily imagine relaxing in the sun for a lazy breakfast.
The only problem would be that as the bedrooms are close to street, you might get disturbed if people walking down the street , or those in the neighbouring building, are noisy. This would only affect someone if they are very light sleepers.
Arrate is communicative, quick to respond and was quite accommodating in letting us keep our bags even though we arrived early in the morning.
Overall, I highly recommend the apartment.