I finished this one the other day. I thought it was a well-written story and I liked where Christopher took the Enterprise characters. I thought there were too many story lines at first, however it came together by the end.
I enjoyed the return of the "Mutes". "Silent Enemy" was one of favorite ENT episodes and while I didn't care for "Bound" I didn't mind the use of the three Orion sisters and even throwing in the Orion from TAS. I did like Garos and hopefully he'll return in future books.