Sword of Damocles totally smacked me in the brain, and I wasn't expecting it at all. I knew Orion's Hounds and, to a lesser extent, the other two would be awesome because of what I'd read of the authors previously; Thorne was new, and I'd heard some kinda iffy things, so I wasn't expecting anything great. I totally loved it. Untangling the language, the timelines, the backstory, it was all just so damn intricate and fascinating and viscerally important. I think Thorne has the most unique writing style to hit trek lit since Peter David; if he ever writes another one, I'd be able to tell you it was him after reading a couple pages, and that's not really true of any of the others except maybe KRAD.
I know opinions differ, and there's a lot of "meh" about the book in this thread in particular, but I think it's hard to make something that unique and challenging without a lot of people hating it. I just wanted to counteract that by saying that it's definitely my favorite Titan, and I hope Thorne gets another crack at a Trek novel in the future.