This review is of the Kindle version, which really deserves only 1 star. I did pay the extra $$ to get the Kindle version, and in principle I'm OK with that, since someone had to do the conversion from hardcopy. But this version is FULL OF MISTAKES. I really like working the equations, and I'd say there's about a 50:50 chance that any given equation is right. When the variables are defined, they call a rho a lambda half the time. What a joke. Or you can't tell where the parentheses are supposed to begin and end. Sad. It's like a detective game trying to figure out what they should really be.
But more than that I still give the content only 3 stars. Granted the flow bench info is pretty good, but I disagree that the equations are explained well. Sometimes they're just handed to you, like they came out of thin air. It's important to know a little more than that so that the equations mean something to you physically. And then when they're wrong half the time (at least in the Kindle version), you can't tell what to do to make them right. So I'd say that overall I'm basically pretty disappointed.