Mariella is extremely nice and helpful. Our plane landed quite late and the bus took longer than expected (line X2) but she kindly came to welcome us at the bus station. It made us start our trip a great way.
The photos about the flat are completely accurate, it was very clean and we had a pleasant stay. The location is great as it is really close to Spinola Bay, buses to Valetta, Paceville and so on. Overall I would definitely recommend staying there.
And thanks again Mariella for waiting for us on the first night.