No not happy on the east coast because my husband has to commute and will need to pull into a parking lot and order fast and then get back on the way to work.
East coaster here. I liked pre-ordering at 3am, which is weird, I know. For some reason I feel like pre-orders will be even more jammed up than normal with the new time.
Currently in the central time zone and I'm really happy and 7 am is the sweet spot for me. I'm already dressed up for work and coffee brewed. Don't work till 8 am so I would have 30 minute of time to do something.
I am extremely happy about it on the East Coast. I get to work at 7:15am. I can settle in. Get my coffee. Answer some emails then prepare myself and my wallet.