Thing is they probably mixed every single RPG that i've enjoyed in my life(DQ, Pokemon, Tales, FF12,etc.), the only thing that was missing was time traveling(Chrono Trigger) and giant mech suits(Xenogears) and you've covered them all.
So yeah it's a really great game, i've enjoyed the story, voice acting, artstyle and boss battles very much.
We live in a cynical world and now getting into my mid twenties I know it now more than ever. You start paying attention to the world around you and you see that stuff is pretty messed up. You stay positive any way you can because heck, I'm an american white male and as Louis CK says, "You can't even hurt my feelings!"
I know this is sort of rambling, but what I want to say is that Ni No Kuni injected some brightly colored, adventerous magic into a system that was poorly lacking any significant entries in the genre while at the same time renewing just a little bit more of my optimism.
Yes, it's geard towards children dialogue-wise. Yes "NEAT-O!" gets annoying the hundreth time you've heard it. Yes it's cutesy and silly and emotionally honest.
There's nothing wrong with that, though. This game's gonna teach a new crop of children to try things that scare them. To be fearless in making new friends and brave when you have to stick up for others. That even if you can't get things your way, the effort put in isn't wasted. That the most horrible thing in their little worlds can't be the end because they have the potential for greatness.
So yeah, I don't really care if it's considered a classic worldwide. but it is for me.
If you dig old school jrpgs then you simply cannot miss this game. It is every bit as good as the vaunted ps1 era RPGs and comes damn close to being on the same level as Earthbound, Final Fantasy 6, Chrono Trigger, etc. I cannot praise this game enough!
Easily the best and most charming JRPG I've played since Dragon Quest 8. Like others have said, you won't like this game if you dislike JRPGs. It is a classic example of the genre and fondly reminds me of the SNES/PS1 RPG days.