Not nearly as funny as people'd have you believe - I may have chuckled once. Many of the cast are more caricatures than characters, with the narrator's love interest not developed past us knowing that she has a nice smile (and nice jeans).
The story wasn't in the least believable, but in the end I at least wanted to follow along to see what craziness Fallis would come up with.

I had some other minor problems with the book, but the thing that really stuck in my craw was Fallis's seeming total unfamiliarity with engineers. He's supposedly one, yet he (I can only assume) qualmlessly portrays them as one-dimensional, single-minded pursuers of nothing but technical knowledge. If he's to be believed, nearly no engineers are so much as literate, much less interested in reading. I'm not an engineer, and as a former student of mathematics, I'm practically required to mock and belittle engineers, but I even I was insulted.

As an aside, I realize that Fallis went to school a while ago, but 2 female engineering students in a class of 120? He's probably off by something like 58...

To his credit, I'd thought I'd caught another error when he referenced the four-year lifespan. For years I'd heard people mention this when the term was actually five years. Imagine my chagrin when I checked and learned that it was reduced to 4 years in 2007, which is when The Best Laid Plans was published, so at least he was current on that.