1. It's about a highschool kid named Tsuna who is being trained to become the 10th generation boss of a mafia called Vongola .
2. Anime is still ongoing. I don't really watch the anime, but the manga has a weekly release and currently has 301 chapters at the moment .
3. I'd say it's better than good . But that's my opinion . they took in a little comedy and pulled in some action and new types of weapons [well not necessarily, it's like what they did to the weapons]
4. Comedy/Action
just a little note, it looks like you started watching the anime, the first set of episodes are a waste of time xD.
they give you a little background info about his life but eventually, you'll catch on the wear the action is and that's when you should start watching and paying more attention