Location of the apartment was amazing, very close to the ferry to Valetta, a walking distance (about 25 mins) to the clubs in St Julien's, many minimarkets in the neighbourhood and good restaurants open until late.
The apartment itself was very spacious (we were 7 and felt very comfortable).
We were there in the winter season and it was quite quiet neighborhood at that time.
It was clean and had all the supplies we needed (tea, coffee), fast WiFi and also many Euro to UK adpters for our electronic devices.
In winter it's quite cold in Malta, but each room had at least one electrical heater which was enough to warm up the rooms.
I highly reccomend the place for groups of friends.