Before beginning, I want to clarify that Micah Joel is a friend of mine, though I was surprised to find that he was writing novels. I am going to try to be as objective as I can here, however.
Misfits is a good freshman novel - it could use some polish, but it was quirky and fun, and yes, more than a little mentally challenging. The premise is that in the "relatively" near future, probability itself will become a publicly traded commodity - one can save probability, spending it to make more improbable things happening, or saving it (even at the risk of being subject to probability attacks by others). With this delightful premise in place, the logical extension is that you can buy and sell such probability on an exchange, and the person who controlled that exchange controlled the world. Pierpont Morgan, CEO of Morgan Stanley Facebook, is that person.
The novel starts with the late Steve Jobs (he of the reality distortion field) appearing at the Pearly Gates, where he is given the option of saving the world one last time. He takes it, finding himself aboard a space station with none other than Nikolai Tesla, genius inventor. Nikolai wants Gates to put together a team, and Gates proceeds to resurrect Lady Ada Augusta Lovelace, programmer and proto-programmer, and William Shockley, the brilliant but controversial inventor of the semiconductor.
What follows is a battle of wits between this improbable team and Morgan that gets into the multiple world hypothesis and plays heavily with the nature of artificial intelligence, quantum mechanics and, poignantly, surviving cancer.
The book is intriguing and fast paced, though somewhat flawed. I'm a fan of solid world building, and there were times throughout where I found the lack of description and details left me feeling confused - the characters and settings tended to be sketchy, at best. I also wish that the central premise could have been played with more - the idea of a probability market could have served as a springboard into any number of potential stories (in fairness Micah's follow-on books do explore this more). I could see this almost as a comic collection. Of course, as someone who tends towards overlong prose, my complaining about the terse staccato style of Micah Joel's writing is a bit ironic.
I will caution that there are some deep concepts hidden inside this gem of a book, and more than once I found myself on Wikipedia looking up some fairly technical terms in quantum physics especially. Not that this was even remotely a pedantic book, just that the author clearly knows that his primary audience will be tech geeks.
Overall, I think that Misfits is a solid first novel, one I would recommend especially to readers who like fast-paced, technically rich content. It makes me eager to see more from this author in the future.