- Charging reasonable prices (not necessarily cheap but reasonable!)
This is important, not in that, as said, the price should be low cost, but reasonable, and as said, transparent. For those who have expressed a desire for a nice club room, a front desk person to greet, a person to clean windshields (carefully, so as to not scratch) and other non airplane/instructor nicities, I agree. Remind yourselves though, these niceties cost money too, and that has to come from somewhere. So either the student appreciates these added elements, and pays an additional user fee for the facilities, or that reasonable cost is added (and of course presented) to the rental cost for the aircraft.
The club at which I learned to fly had these nice things, and I appreciated them, but it was also the most expensive place to learn to fly anywhere around. You get what you pay for....