The apartment is very safe and in a very good and convenient location from beach and promenade. The family renting out the apartment was also very kind and helpful. Properly equipped with excellent working WiFi connection.
The apartment itself is however, an attic apartment (hence also very hot in summer- thanks to AC fitted in both rooms) with very limited height and hence movability. In my opinion not actually suitable for average European adult heights, at the most 2 adults plus 2 small kids. Bathroom is also very congested due to roof.
Railway runs in front of the house so noise at intervals could be disturbing for those very sensitive, especially in summer, for us it wasn't a problem.