Man, it's great! The California Smash is epic too! But for the most part the art is pretty good, especially for the final battle. gets super bad, like those screenshots of Naruto va Pain where the character faces are all messed up and weird. But the fights and character interaction makes up those flaws.
Story: 8/10 Plot didn't really get me super excited as I watched (maybe I was expecting too much after seeing the plot of this series). The plot is kind of predictable but the fact that it's not a filler movie that pulled a plot out of its arse, it actually provides us some background story of All Might and adds to his characterization earns an 8/10 from me. Not the greatest anime movie I've seen, but definitely far from the worse.