I spent several years flying a Pilatus PC7, that had the "good fortune" of having RK EFIS installed. If that aircraft stayed around, the RK displays were coming out and being replaced with G500/600. My first reaction to seeing the avionics on the 429 was to wonder who made that decision.
It is a Garmin world now. Bell did a fantastic job with the 407 GX installation. Cessna is mostly Garmin now, despite Honeywell and Collins. Wonder what it would cost for Bell to go to Garmin in the 429 -- surely not more than Garmin in the Sovereign, X, CJ3+, etc?