That's an impressive building, and if it winds up looking anything like the mocks up would be an asset to the area. Shame about the R&D "huts" flung to the side and the massive double story carparks for the lesser staff 1/3 of a mile away, but at least the car parks aren't 2 square miles of asphalt.
As for the town, the impact of having a company such as Apple head quartered there is massive, there will always be a huge amount of pressure from the area's largest employer (by far), such that pretty much anything they want they get. The danger, like the mining industries in the UK (and other countries), that dominated areas to the extent they built whole towns for their workers, is what happens to the area when it goes wrong?