Great place in one of the best locations in Valletta. Space is huge space and I loved the high ceilings. The bed was really comfortable and there was no noise around when we were staying. The Maltese balcony is really cute. The amenities were fully ready: Fridge, water boiler, plates, glasses. We also liked several fruits left for us :)
I also especially want to thank our hosts for quick communication and help when we needed, as my wife's pregnancy required some specific questions from our side.
The only small improvement I can suggest is for the winter season / colder days. The floor is very cold because it's one of those really nice stone buildings. This maybe good in the summer but maybe some carpets in the winter might help. Also a heater might work better than air-con as it doesn't warm up too well when it's too cold outside.
All in all, it's a great apartment to stay in Valletta.