First of all, Nicholas and his wife are great hosts. They responded to our messages immediately and tried to solve all the problems that arose.
At our arrival the key box didn't work, so we tried in vain at 11 pm to enter the apartment (our flight arrived at 10:30pm). Luckily, even though it was late Nicholas tried to help us and finally he came and gave us the key.
The apartment was small, clean and nicely decorated, exactly as it looks like in the photos, with modern furniture and as it looks recently renovated.
At the ground floor there is the kitchen the living room and the bathroom, and in the basement is the bedroom.
The main problem of the apartment and the main reason that I didn't gave 5 stars, even though I really liked Nicholas and his wife, is humidity.
I am from Greece and I spent every summer on our islands or in coastal areas, so I am well acquainted with humidity. However, the humidity levels at the bedroom, were marginally unhealthy. The change in atmosphere was noticeable as you descended the stairs. Any clothes we left in the bedroom were a little wet, even the bed sheets. The room had stone walls and for that reason it had so much humidity, the atmosphere was really unpleasant and it made us mot want to stay there.
We had also problem with the electricity at the bedroom (logically due to high humidity). Only one socket worked and we used it for a small lamp, necessary due to the fact that there wasn't natural light in the room. Nicholas send us an electrician who tried to resolve this issue, however he only managed after 2 days to fix 2 more sockets, we stayed for 4 days so we didn't tell to Nicholas that the problem with electricity didn't solved completely because we would check out after 1 day.
Another problem we had in this apartment was that there weren't furnitures to store our personal belongings. It only has 2 bedside tables and a small wardrobe type. However we couldn't use them due to the fact that they were at bedroom and everything we left there end up to be a little wet from the humidity. So the apparment end up to be messy.
Additionally, we had problems with the mirrors at the apartment. The mirror at the bathroom it was placed too high, the full-body mirror at the bedroom it was placed too low, and the mirror at the boudoir didn't open properly and it wasn't useful. Also, the two of the three mirrors are placed in the bedroom, where there was low light and electricity so there was not useful. So I couldn't do my hair and my make up and I end up using the mirror at the bathroom as much as I could and my selfie camera. Please note that my height is average at Greece (166cm).
Also, the sound insulation was non-existent, something that did not bother us at all.
Worth to mention that the location was ideal. Very convenient even if you rent a car or use the public transportation.
If the humidity problem and the electricity problem solved and if they manage somehow to put some more clever furniture in order to store your personal belongings the apartment wil become a great choice for your stay when you will visit Malta.