I’ve been hanging somewhere between M1 and fast for a while and my goal is to be able to start and FINISH at least one ride with the fast guys hahahaha

Which one helps me more to achieve my objective Roller or a Trainer?

I assume some of you guys have used both and can tell me the difference and the benefits of each, currently I have a magnetic trainer which is not pleasant at all. If the trainer is the answer it seems that CycleOps fluid2 is a good choice to go for but if the Roller is what I need then what’s the reasonable one to go for?

Appreciate your thoughts/comments:)
Cheers,
Niv