It's rather annoying when they alter spells and classes that have been in the game near since it's release. Especially so blatantly with no real reason. Unforgivable.
Why is it that they changed create soul gem to have 500gp focus, and only past days per level? No clue. Why would they create a 9th level ritual requiring two casters 90 minutes, and an insane amount of gold to do something that a 3rd level spell required before? No clue.
I have no issue with reprinting and repackaging, but the constant nitpicking is annoying. I'm waiting for paizo to realize that everything they tend to try to "fix" they turn to crap.
Having read the majority of the book, I feel like I can weigh in at this point. I really enjoy the lore, technology, and most of the classes.
The only real issue I have is with the magic system. Lowered to six spell levels,progression closer to that of weakened spellcasting, and several iconic spells missing. I get wanting to make magic take the backseat, but I really feel like that's the arena of the GM to decide the feel of the game.
The explanation of, "It's easier to use technology so magic disappeared!" Doesn't add up either, as I feel like a lot of the spells eliminated are things the technology doesn't cover, and a lot of the existent spells have a technological equivalent.
I'm really hoping for a nice book expanding magic, maybe with a newage wizard class.