Things I hated:
She goes ON AND ON about her gypsy gift. All the time. Call is Psychometry or powers or SOMETHING. stop calling it "my gypsy gift." For the love of God, no one even ares.
Gwen is a Mary-sue. She knows nothing and always needs saving because she does stupid things.
Logan, and the fact that there was no instalove. He's an endearing and infuriating character both at the same time. I think he'll grow on any reader, because who doesn't like a hot warrior who comes to your rescue every time?
The world Jennifer Estep built. It was unique yet set in modern times. the intricate weaving of these warriors living in a very human world was well done.
Overall, despite the substandard plot, the twist at the end was worth it, and writing is good enough to keep you reading. If you like mythology and are okay with settling for just a decent book, then Touch of Frost is definitely for you.