I'm a well read grad student who's bluntly honest about all things, although I try to be most honest about myself.
Fun, quick, and easy, if you don't mind the continuation of plotholes. Such as... Gears leading Bumblebee in battle, despite Bee clearly being the soldier with more training, and more experience. Reverb believing he isn't a pawn, despite the human telling him that four dead Decepticons were pawns. A human managing to control Decepticons.
The writing itself is solid, even if it's nothing revolutionary or poetic. The characters fall a bit flat, but not too badly, and seeing as this is Bayverse... I'm willing to give the author wiggle room. (He didn't do anything as horrid as Jazz or Skids and Mudflap in Bayverse, so plus for that.)
Even as a reread, this kept me engaged. I wanted to finish it again, so I can't see myself two starring it, and I hovered over the four stars for while. The problem? It's not *that* engaging, and the plotholes make me cringe a little. (To be fair, the author may have been forced to write those plotholes in if he was given a very specific outline with little wiggle room himself. From what I hear, and understand, that's the way some of these tie-in books work. Not all of them, but some. Without knowing the details, I'm not going to fault the author for the plotholes, but I am going to knock down stars for them. Someone, somewhere, made these decisions, and the book does suffer due to those decisions.)
Eh, let's just say if this author wrote another trilogy in the Bayverse, or any Transformers continuity, I wouldn't bother with the library. I'd buy 'em 'cos I'd probably wanna reread 'em.