This was quite good.
It's still not QUITE a Terry Pratchett novel, not in the way the Discworld books are, but it's still a fun series and it's a lot of fun in it's own way.

I was expecting this to pick up where the previous book left off, but it doesn't it starts off 10 years later and moves forward from there. There's plenty of flashbacks, but it's one thing to flashback to an event and another thing to have characters experience it first hand.

I really liked the way some of the characters developed and how the different types of intelligence are shown. There's some really neat ideas explored and some interesting conclusions made. It's fun and moves pretty quickly.
There are some things that aren't well explained, like how people find each other when they're out in the Long Earth and are hopping around from world to world. But that seems to be left intentionally vague and I'm really OK with that.

The story keeps moving forward, but in a way it's moving along and you can kind of tell where it's going before the characters do. But I couldn't tell if they'd figure out what was happening without an explanation, and an explanation is given, which seems almost like the authors were worried people weren't able to figure out what was being said, despite the fact that it had been pretty well spelled out over the course of the book.

There was a character that I liked that was using her military mission to just be a good person and try to teach others to be better as well. That was a great storyline. I could have done with an entire novel about that alone. And yeah, that's referred to in the book as "Star Trek stuff", but... I like Star Trek when it's done well, and this was a well done Star Trek sort of thing.

Overall I still really liked the book and will probably be reading the next one soon.