My friend and I stayed in Valletta for three nights. Everything was great, as soon as we had booked the appartement. Umberto always wrote very quickly and even offered to organize a taxi for us.
Altough we arrived arround 9 pm, Umberto and Silvana, his mom, welcomed us very warmly. Silvana showed us everything and gave us redommendations where to eat fresh fish or the best chocolate cake. We saw her every now and then, for her shop is just across the street and she was always very nice. She was very helpful in printing out our flight tickets.
The appartement is in a great location in the center, yet still very safe. You can walk around in Valletta and find restaurants and bars just around the corner.
The appartement is very clean and well equipped. You could make coffee or tea and easily cook a meal. There is also a dishwasher and a washing machine. The bed is nice and the two bathrooms pleasant.
We'll definetly come back.