The apartment was very nice and clean. Our kids liked the playroom very much . The location is very good: close to the beach and around 30 minutes to the city center by metro. There are a lot of shops, restaurants and bars nearby. Also Marcel, Marta's brother, was available by Phone in case there was an issue.
The only thing which is a pity is that the neighbour upstairs turns his TV very loud till late in the evening (sometimes till 00.30). This makes it difficult to go to sleep early.