I didn't mind the hub, it itself isn't really a problem. Though I think it should change gradually over the playthrough, get darker, random sounds, etc. keep it interesting.
The real issues are the pointless ticket hunting (It doesn't affect the order you visit levels in at all, as far as I can tell) and the lack of substance to many of the other levels, like the conference and office room levels. The golf course was cool, but that's all it was. It would've been cool if once you realize it's neverending you try to leave, but then it starts turning into a twisted maze of nonsensical golf courses.
Plus the beta made it seem like there'd be more of a horror element to the game, but literally the only horror element we got is what was in the beta.