I havent a clue what to avise him.
A good start in that case might be to advise him to ask somebody else for advice.
This month's edition of 'Flyer' has a review of the G2.
There are a number of threads here concerning the Cirrus, two of which are 'live' at the moment. The search facility will find them.
FD,
I think it was the other way around - the initial EASA approval is for the 20, the 22 is still waiting.