Short version: "I confess myself... disappointed."

Longer version: This book doesn't reward you for reading it. The premise isn't exactly fresh: Elemental gods, a realm full of sorcerers and commoners, a race to find magical doohickeys, the strength of sisterhood or true love... It's been done. But, giving the premise a chance, I was further disappointed by:
1) Characters jumping to conclusions because the author wanted to further the plot in the right direction. Everybody has a sixth sense about who is trustworthy and who's not, or about where they need to be/what they need to do... There is no lasting intrigue, mystery, suspense, betrayal... Everyone gets exactly what they need, from people or plot, quickly, easily, and often nonsensically.
2) There is no emotional payoff of any kind. Someone is hurt, instantly healed. Someone seems dead, nah just a close shave. Some enemy seems insurmountable, nope they're defeated in a couple lines.
Because everything is "as it should be" or achieved easily, the "conflicts" which are presented don't feel like conflicts. It's jarring when a character jumps to the "right" conclusion without enough setup, it takes the reader out of the book. And it's boring when the book sets something up, but resolves it almost immediately.
And speaking of the plot, most of the choices the characters made for /how/ to resolve the central conflict, created completely avoidable secondary conflicts! The plot was full of holes where characters could have made wiser or more creative choices.
In summary, if the story doesn't feel smart or emotionally charged, then it's just... a story. And it's fine... But "fine" is not a good reason to pick up this book over any other of the millions of fantasy stories out there.