What the Working Title Simulations have achieved with the CJ4 is just awesome. Their customized AP had avoided the issues of the stock AP. Pay-ware developers seem to realize that only after release and than scramble to follow WT strategy.
Functionality wise the WT CJ4 has managed to achieve many firsts in MSFS for a freeware; RNAV, Missed Approach, PT, Geo-referenced Navigraph charts etc. It’s a joy to fly with the right balance of automation e.g. RNAV and manual e.g. no auto throttle.
The Collins systems and manual throttle are quite similar on both and anyone who has flown the WT CJ4 would find them familiar. But at the end of the day, they are different; biz jet vs regional airline. They will each continue to have their attractions and fans.