We have been travelling to Abco for forty years; many of those in our own light5 twin flown by me.
Having the experience of many years as a pilot, IMHO, the services to choose from are all piloted by newbies; the Part 135 operators (the Cessna 401 ops) have the least experienced pilots, who are just starting their careers. The turboprop ops (Gulfstream et al) are up a notch (or 2-3 notches) and the equipment they fly are staffed by at least one competent captain. Their scheduling reliability however is a wild card; from atrocious to very timely.
The judge3ment of the pilots' professionalism from non-pilot psgrs I question; after the crash of a C401 in the drink , with a fatality; we saw postings on this board praising the pilot, for an inexcusable accident. The TSA, however, is making the 135 operators more attractive.........