Gabriel's Ghost was a pretty average read for me. I liked a lot of the ideas behind the novel, but felt that it could have been executed better.
I will note first, I've already picked up the second book in the series. While Gabriel's Ghost does bring the relationship between our main characters (more-or-less) to a conclusion, it does not wrap-up the non-romantic plot line (which I enjoyed far more than I enjoyed the romance in this book). [
Post Book #2 Note The second book was much better than the first and does a better job of concluding both the relationship arc and the story arc. I think both books could have been scaled back and combined into one to make a much stronger book. I definitely recommend reading them together.]
The relationship between the main characters was disappointing. The heroine is back and forth about her feelings towards the hero so many times that the entire relationship began to feel unbelievable. My favorite character was Ren, a secondary character who takes the role of the beta male in our story - I would love to see a novel in the universe based on him.
The book was pretty predictable. There were some surprises early on, but after that I started to catch on to the path the novel was taking and wasn't extremely surprised by anything that happened.
The worst part of the book for me was the repetition of words. Sully always gazed with his "obsidian eyes," Chaz was always talking about "rainbows" (a cheesy synonym for auras, in the context of the book), and there was a definite overuse of lame pet names on Sully's part.