This is a book that could have been written in the '50s. It has that early Heinlein YA novel feel, where anything is possible, if you're determined enough, try hard enough, and stick to your principles. No, it's not a YA novel, but, unlike many of today's novels, I wouldn't hesitate to give it to anyone old enough to understand the vocabulary.
The characters are people I would like to spend time with. The situations are interesting, and the strategy makes sense. Typically of a Grant novel, I'm left at the end wanting more, and that's a good thing.
As to negatives, there are no real surprises or plot twists. My greatest frustration is that the dialogue contains a lot of extraneous material that seems far more aimed at the reader than the character being spoken to.
That said, I like it. Actually, I like it a lot. It's all about the optimism. After reading the news, and after dealing with one's own daily grind, sometimes it's nice to grab something that simply feels good to read.
Reading these books, I don't worry about Maxwell's upward trajectory. He may get banged up a bit, but he's going to do just fine. And, following along as he does it makes my day better.