Went to see this today with the kids in 4d-3dx and it was pretty good, despite me not understanding all of it (because it was in Bulgarian), but I got enough to enjoy the movie, could follow the plot etc .
will enjoy rewatching in English so I enjoy more of Jack Black's flair.
I'm not a Minecraft player, but by eldest daughter is and she loved it, stuff in 3d is always fun anyway.
the other kids and teens also really seemed to be into it and cheered at the end of the film, so if you have kids that like Minecraft, i'd say it's a guaranteed good time !