Story
The story is very realistic. It's great if you are looking for something more down to earth. I didn't relate with the themes of the story, but if you like gangs and old-school motorcycles, then I think you could have a really great time.
Art
The art is great. I don't think I have anything else to add.
Characters
Other than the main character, there was no one else to root for. It's also kind of fun watching Takashi become an asshole.
Enjoyment
I enjoyed it despite not being into motorcycles or hang wars.
Overall
I recommend this series if you are into realistic stories but as for me... meh