Real feeling of flight -- rather subjective --
Personal feeling of flying a 85 hp lightplane-- boring-
Riding in an old airliner as a passenger in a wild electrical storm-
Quite disconcerting.
Flying models and working out the "why" of it's performance - fun-
Building a 50% scale Pitts -and having to redesign it as I go -and making sure the tykes puppy does not chew on any parts - well - well- all in all-- satisfying.