Story-wise, it's definitely not great. I do recommend manga more than the anime though. The manga isn't dragging the fights, it's straightforward. There isn't much to the story, it's just goku slapping enemies.
the art, I'll give it a 8. It's not as amazing and detailed like Inoue's art, but there's this charm to it. as a kid, I prefer art style like DB rather than Slam dunk. Art is simple, clean and characters are recognizable.
There aren't much into characters, they didn't go into depths of the characters. throughout the series, I only like goku, vegeta and gohan. the rest aren't likeable or not that good.
however, I do enjoy reading this even though I'm all grown up. it's nostalgic but it's surely enjoyable reading this, especially after reading complex-psychological-philosophical manga xD