If you’re not a fan of the first film, don’t bother with this one. If you liked the first one with a “meh”, then don’t bother with this one, or at least lower your expectations. If you absolutely adored the first one, you obviously are going to see this one, and you understand that this is the second part of a trilogy that is going to be epic. Book-purists can go make their own movie and stop crapping on this one.
There, easiest review ever. Beyond this point are my thoughts. Again, if you have no interest, why bother? SPOILERS beyond this point.