This apartment truly deserves its 5 stars. Very comfortable and conveniently located away from the relative bustle up the hill but only a short walk to the bus terminal if you want to explore the rest of the island. I spent a week in Malta, using Becky's place as my home base. It was so nice to come back to a clean, modern and beautifully decorated apartment.
The kitchen is well furnished. If you plan on cooking a lot, the grocer downstairs is great for vegetables but for the rest I would go to the slightly bigger Gigi's a block Northwest.
It's a quiet area at night, and not very busy during the day either, but there is some street life that begins early in the morning and you can hear it all pretty well from the bedroom, so light sleepers beware.
If you have the time, take a stroll around the apartment and pay attention to the traditional architectural details in this area.
Becky can arrange a very nice taxi driver to pick you up at the airport, bring you to and let you in the apartment. That's so stress-free. I also arranged an entire day with him to drive me around the island - not inexpensive but a very efficient way to see a lot in one packed day.
All and all, I will definitely return to Becky's if I ever come back to Valletta.