ORIGINAL: gaRCfield
The Mustang PTS is a horrible 'trainer' - total gimmick, half the instructors who try to help guys with it can't fly it themselves. Stay away from the PTS kits - all of them.
The Avistar is a very fun high-wing trainer; it has a shorter wing so it is fairly maneuverable.
If an instructor can't fly a PTS Mustang, then they probably shouldn't be teaching others to fly.
Just sayin...