Jepps are used by nearly every airline in the country, and most corporate operators of turbine aircraft. They are easier to read and, in my opinion, are far superior to the NACO charts. I use Jepps almost exclusively when I fly.
Of course, my company is paying!
I do keep a set of NACO charts at the house that I use for flight planning and reference ... they're expired, but I can always look at the updates online through AOPA. Of course, I never use the expired ones in flight.
Yeah, filing Jepp updates is time-consuming, but I don't mind doing it. Keeps you up to date on changes in the airspace by actually looking at the charts, instead of just throwing out and replacing whole books from NACO.
FL270