My wife and I had to go to Sliema from Marsacala and as we are both in our 80s we thought we would give Arriva a go. The buses were excellent as were the drivers.
The problems we found were not on the buses but when you got off to change to another bus. There were plenty of advisers around but to suit so many people, with different needs, you would want one to one.
I think that, given time, this will be an excellent service to the people of Malta. Good luck Arriva.