This is a great place!
We stayed here with 6 people (two couples, two singles) for a week. Each bedroom has its own bathroom and the apartment had enough space for a group of this size.
The wifi worked perfectly and the supermarket is a two minutes walk.
The beach is just across the street and also there are a lot of cafe's, restaurants, breakfast places in the area.
The apartment is not close to the center (20 minutes bus ride) but the bus ride is beautiful and there is a busstop across the street. If you want to take a metro you can walk to the station (5-10 minute walk)
We visited the NOS Primavera Sound festival, the entrance is just a 1 minute walk so if you are planning to visit the festival this is the place to stay. But the park is also great to visit without the festival.
We really enjoyed our stay and will definitely come back.