As regards the survey, you have to remember that Jepp has a very large, and diverse customer base, not just civil air carrier. Also a large team in SJC (was Los Gatos) that are working 24/7 on the system, maybe that's one of the many plus points. I trialed PPS some years ago, but was not happy with it's flexibility, or lack there of as compared to Jetplan.
Ho hum .