Filler episodes I liked:
-Gohan and his robot friend
-Snake Princess
-Krillin dumps Marron
-Driving School (of course)
-Gohan teaches Videl how to fly
So yeah, the non-fighting filler was ok in my opinion.
Those fillers are good along with the Garlic Jr saga due to them not interrupting a pace already in motion. They are also character building rather than extending or pending a narrative flowing. imo of course