FLM trans forward conversion worth the money?

[Physco-Savvy]

I can't make up my mind on what to do with my savage. I have been looking real hard at the Flm conversion but I am tring to get more input on it.It looks like a nice conversion, and I like how the battery sit inside the frame, but I would have to be careful to make sure the batts I buy would fit in there. For the guys that have the conversion are you happy with it?
Thanks