When it comes to Star Wars books, the X-wing series are probably the fastest paced and most action-oriented. You can easily zip through one of them in just a couple of days. This is good, because Iron Fist is so good, you'll want to read it more than once.
Aaron Allston proved in Wraith Squadron that he could live up to the reputation of the X-wing books. Not only was it just as exciting as Stackpole's books, it also had more humor, and to me, more lovable characters. With Iron Fist, he takes us one step further into this unique group of pilots.
The main focus is shifted from Kell to Face, and we get to learn a lot more about Ton Phanan. We observe more clearly how Wedge relates to his pilots, and how he tries to pass on this knowledge to Face. There are plenty of exciting battles, and once more we meet Soontir Fel, and his up-and-coming rival, Lieutenant Kettch.
My overall opinion of this book is so good, I would place it just below Zahn's books. If you haven't read it yet, what are you waiting for?!