I was working with Cron and Amsky for a few years. Installations, service, training.
From both imagers you will have good image on plates.
Amsky have better plate centring system.
Cron is known for left/right alignment issues because the way they do it.
On Amsky you can load and expose the same plate 4 times and you'll get good image.
Amsky is easier to service and diagnose. Error reporting and remote diagnose.
As the user you should ask yourself: where is nearest service technician and spare parts warehouse.
Chris