A really great feature is the property's location: actually it's literally the best possible location in the borough (town) of Pieta. Bus stops in both directions are quite near. Getting to the entrance of Valetta (Triton fountain) on foot is also pretty easy, it will take around 25 minutes of walking along the main road and passing through Floriana borough, which itself also could be interesting. The main road (to/from Valleta) is close and rather busy, so sleeping with the open window might occur not very comfortable to someone.
Staying in an old building is something that might help you feel better the atmosphere and cultural milieu of Valletta and surrounding towns so rich in history.