Being honest, I don't know much about the Belfast or its service history so I don't want to comment.
I don't welcome new technology every time, although I'm sure you and others would agree that there comes a time when new aircraft are needed to keep up with the demands of the job and the stresses of operations. The Hercules has been in front line service for a long time now, it's time for something new. I also really like the arrangements of the props on the new Atlas, there's more blades so theoretically (if I have this right) they will generate more thrust while using less fuel so as they can have a longer range before needing to think about landing to refuel or meeting with an airborne tanker for air-to-air refuelling. I also like it how two props turn in one direction while the other two turn in the opposite direction.