I enjoyed this book from start to finish, and found it a thoroughly entertaining read. I am sure that there are some hard core fans of both Star Trek and X-men that shiver at the thought of reading fiction of the two genres mixed together. But I feel they should bury their feelings and take a chance on this book.
In brief, certain youths on the planet Xhaldia start develop mutant powers, and the Enterprise is sent to investigate, shortly after picking up the mysteriously appearing X-men from a Star-base. On route to Xhaldia, old friends re-acquaint themselves and new friendships form, before fighting off a new Federation alien race, intent of acquiring the `new mutants'.
Followers of both Trek and X-Men I feel will be happy with the interaction of their favourite characters, and in my own knowledge of the characters, they all seem to interact with each other and their new comrades as one would expect them to in their own universes. But then that really is not surprising considering the author is a fan of the X-men and has written for both Trek and the comic book industry in his past. One thing that Trek fans not into comics might miss is Friedman's homage to the comic industry in the form of naming crew members after famous comic artists, such as Lee, Kirby, Ditko, Kane (and Wayne).
Whilst this is the second unification of the two groups, I do not feel that the preceding history needs to be located in an old comic/book shop and read. There are brief reflections on the two group's history together which should be enough to allow the reader to enjoy this book as a one off - though I am sure there will be those out there hurriedly trying to locate the previous team-up.
Personally speaking I do not read a lot of Trek stuff, basically I think because trying to read everything ever published in the Trek world would about as easy as trying to get hold of every Star Wars toy ever made. Whilst this book in itself has not enamoured me to take up all things Trek, I certainly would try another Friedman book.
For those interested in the trek time-line, the adventure is set shortly after Worf's marriage to Dax.
Apart from knowing full well from the outset of the book that no actual team member is going to die, the only downsides for me about this book - if you can call them one - was firstly trying picture Picard and Xavier talking to each other without both looking like Patrick Stewart. And secondly, I felt that the 275 just was not enough.
Anyhow, the book is definitely worth a few quid of any ones money - 5 out of 5.