I think it is. The world-building and characters are well-developed. The plot keeps you engaged throughout. But it might not be for everyone, depending on your taste in manga.
Well, it could be that the manga has deep character development or explores themes in a thought-provoking way that makes blaming it unjustified. Maybe the issues people might have with it are more about personal preferences than actual flaws in the work itself.
It depends. If you're reading manga on legitimate websites that have the rights to distribute it, it's not illegal. However, if you're getting it from illegal torrent sites or unlicensed platforms, then yes, it's against the law.
The legality of reading manga online depends on the source. Legitimate platforms with proper authorization make it legal. But most random sites offering free manga are likely illegal and can get you in trouble.