I really don't know why I should. Everyone here is blinded by nostalgia. They don't care about the story at all. I would only talk to walls.
My gf is younger than me and she never watched db/dbz when it was aired, she watched it with me a couple of years ago and she really, and i mean really liiked the ssj1 moment.
OP is her favorite anime (she's not a manga reader), and Luffy is one of her top5 fav characters, she really likes him.
She had no idea about G5 and i didnt spoil her anything because i wanted to see her honest reaction. She could be an exception among Luffy fans for all i know but she didnt like it at all.