(I received a free copy of this novel via Amazon Vine, in exchange for an unbiased review.)
The most important thing for me to note here is that Emylia Hall is very, very talented at writing prose and at "world-building" - her words truly allowed me to picture Lausanne and the other places she described throughout The Swiss Affair.
Unfortunately, the same can't be said for her character-building. The main character, Hadley, was flat and unbelievable. Her love interest, Joel, seemed like half a joke - he was supposed to be a 40-something professor but was described as looking and acting like a 20-something college student (or someone just out of college). Kristina and what happened to her was predictable at best, not to mention the fact that she was a horrible friend, annoying as a person (in the way that she was portrayed), and therefore I didn't understand why Hadley liked her so much.
That said, if you're looking for a light read, perhaps something to drum up excitement for a trip to Europe or to peruse while on vacation elsewhere, The Swiss Affair should grab your attention. The characters, the events, and their reactions may be on the predictable side, but Ms. Hall's prose does bump this novel up a notch in my book. (Pardon the pun.) 3/5 stars.