We had a great stay! The communication before our stay was very good and uncomplicated. Check-In is very easy via a code for the front door, allowing to arrive at any time even during the night. The bedroom and bathroom were both very clean and tidy.
It can get a bit louder as a church and a busy street with restaurants are right next door. However, the host provided ear plugs.
The location is perfect. The apartment is located in the center and everything within Valletta is in walking distance.