I had issues this morning. Times weren't showing up in my browser, but were showing up in the app, so I booked a couple through the app before the browser started showing times. Reservations opened on the app at exactly 6AM, but the browsers weren't showing times until 6:05-ish. I got logged out of the browser at one point, which was annoying, so maybe that's why times weren't showing up, even though I was seeing the reservation page. I still got all of the reservations I wanted within 15 minutes of the time I wanted, so not a total disaster!