As lots of people have said on this forum. Do one Mod at a time, see what effect it has and then decide the next mod.
The package is ok, but perhaps first remap, then exhaust, and enjoy learning about your car along the way. I would prefer to also have the cash in my sky rocket too.
Customer service is great, but you should not have to pay for it.
I always shop around, it is not where i buy from, more the item I am buying, I always do research on what brand I want, and If I can the same branded part cheaper at X than Z, then I will shop with X, as I can fit most things myself.
I went with VWR for a LSD Fit to my old Ed 30, and had a mixed experience of their work standards, however as I have said, their drive to rectify was reassuring.