As a solo traveller, I must say I really enjoyed staying at Daniel's place. It is located next to a very beautiful street, in the heart of Valletta. Very safe, very clean, easy check-in and very accessible area. The room had all the amenities I needed, but I would say it is not necessarily suited for those who are light sleepers or who are easily bothered by noise. Early in the morning you could hear the garbage trucks outside. The restaurants downstairs are opened till midnight and you can hear the music from the room. I stayed at the 1st floor and everytime someone opened the frontdoor, I could hear its beeping sound. To me, that was not a problem, since I usually sleep better on noise, and I actually enjoyed to hear all that buzz from the restaurants downstairs.
The rooftop has a very beautiful view of the sea, and there are small tables where you can eat or enjoy your morning coffee. Overally, I really loved the place and would definitely stay here again.