When you did groundschool on your Citation did you moan and fuss about the need to do it ?
Ground school? Systems or even a systems sim no issue with that!
A citation flies at twice the speed of a Cirrus and over twice the altitude but I can assure you that you will not be required to do 10 hrs in the aircraft for a type rating issue.
Give me a Cirrus and with no checkout I will guarantee I will deliver it to the S France completely intact and operated correctly.
The way some talk of this aircraft is as if it was some highly advanced military hardware with very demanding handling which will bite at the slightest provocation and kill you at a sneeze.
As to the avionics fit yes if you need to know the system inside out you are correct if you want basic functions its not rocket science.
I flew a Bravo with Primus 1000 and had a full conversion on that unit but realise you do not need to use 90% of its functions to fly and get places.
Pace