I just finished reading Force Cantrithor by Michael McCloskey.
Force Cantrithor proposes a new kind of space warfare technology based on FTL electromagnetic field manipulation. The tech is pretty cool, but even though FTL travel also exists, I couldn't help having some believability issues with it. In fairness, the characters were also struggling with the paradoxes this might create and some of the other uses of it that come in later in the book, so it has clearly been thought about, and does form the central focus of the novel. In the end I feel fine about that, as this is what SF is all about; pushing some concepts and discovering the ramifications.
The book is written really well, and I especially enjoyed the ending - actually the pacing was good throughout. I thought the character work was quite good. The central character Emil struggles with his abilities and his humanity and the reader learns along with him what his situation truly is and what is really going on. The slow discovery of his story was part of the fun; my guess about halfway through was pretty close to the mark, but still not on it.
Part of the book was clearly setting up for future novels in the series, so I look forward to reading more.