You jump back and forth each chapter between the two main characters until they finally meet at the end. Interesting way to do things, but the ending is so incredibly ridiculous that it ruins the whole thing. These people don't even know each other but they get married in an alley while walking home at the end of their date. The book loses a whole star for that.

The other issue is that the author very obviously had an idea of How Things Work in this world they've created. But they did not do a very good job of explaining it at all. I'm not even sure theoretical physicists could have made sense out of some of these explanations. And things were explained very matter of factually, not convincingly or in an educational sense. It wasn't so much explained to you as told to you. "This is how it is, period." The literary equivalent of "Because I said so." But way more complicated and using words you have to look up in the dictionary.

Aside from that, it was an engrossing little drama that had just the right amount of humor and intrigue to make up for the lack of romance throughout the first 95% of the book. I'm not sure if I'd recommend it, but I don't regret reading it.