I don't feel that Bono bono can really be called bad. That said I'm not sure I'd feel comfortable calling it good either.
It's light hearted but also frequently violent, it talks about social issues and the human condition but doesn't have anything profound to say about either. It's generally pleasant but also instantly forgettable.
Something it does do very well is relay the way that children see the world of adults but that's hardly sufficient to recommend it.
The show's origins as a simple gag manga shine through, the characters don't progress, the situation doesn't change and you could view the episodes in any order without issue. This makes the show feel dated to a modern consumer.
The Japanese though is for the most part very simple and for someone learning the language I'd recommend giving it a shot. That's why I watched it.