Paragon Paths unique to the setting? Gear? Feats? Powers? Builds?
The game system already has:
550 Paragon Paths
132 Pieces of Gear
3078 Feats
8441 Powers
Builds are up to the players and each should be individualized.
Personally, I don't want any more of this stuff. I'm already overly overly flooded with too much of it. In a campaign setting, I want stuff that's going to help me as a DM. I don't want the pages to be wasted with "yet another Paragon Path that my players probably won't take anyway because there are already too many to choose from".
It would have been nice if WotC would have supplied more maps, but even a small dungeon is really a waste of space. Even if my group plays that dungeon, in a few weeks it becomes obsolete pages in the book. I want pages in the book that I can use over and over and can reference for a long time.
I'm not too bothered by the Themes being there (although I am not a fan of themes, they are just the "bigger, better, badder" aspect of PC power creep under the fake umbrella of character concept), but only because there are not a lot of sources for themes yet.
But, the Bladesinger is a waste of pages for me. There are already 40 classes and 25 Hybrid classes. I really don't need yet another.
I need well written campaign material and ideas, and that's what NCS does. It's not an adventure or a player PC source book, it's a campaign setting. The fact that Themes and the Bladesinger gives players an incentive to buy it (marketing ploy), but it's really a campaign setting for DMs. Players really shouldn't be looking in it. IMO. Obviously, WotC marketing thinks differently (and should, they need to make money).
I consider it a solid campaign setting book. Not great, but very good and I'm far from underwhelmed. I think people who want more more more stuff for their PCs and want it to be a player PC sourcebook or an adventure book would be underwhelmed. By putting the Character Options chapter in the book, I think it confused the audience a bit.