I just reserved as well, at 1:01pm. I've never owned a Chevy, always been Ford (Explorer, Mustang GT, F-150, and Bronco scheduled for production). I reserved a Lightning right after the presentation ended, had no idea people were reserving minutes after it started. Originally I was on the fence...
I'm not sure I like the part about certain configurations possibly being unavailable at the time of your order. I'm around the first 20k reservations so I expect an early wave invitation, and I'll be really disappointed if for some reason there aren't any Pros available to order.