Mopar "Crate Hemi Engine Kit"

I was curious if anyone has experience with the Hemi engine management kit (P/N177072455AB) straight from Dodge? The obvious surface appeal is that it's straight from the same people who made the motor, assuming you're doing a new hemi swap of course, it's made for dropping into a 70s Mopar, and it "should" work together smoothly. The two basic questions I have are:

1) are there real world reviews of this system (I've done a little googling without much success as far as end user reviews and not just magazine write ups); and

2) are you paying a huge premium vs piecing together a system yourself. I'm, theoretically at least, ok with a little upcharge for the convenience but not as much if it's a huge upsell without tangible benefits.

Appreciate everyone's insight as always (especially as someone new)!