Hi, thank for checking. I actually switched over to the one-page checkout on August 08 upon receiving an early-access email from Shopify (I tried to attached the email but it’s not working).
In terms of specific issues, we hosted a sample sale this past Friday and a few customers messaged saying they simply could not check out. That once they hit ‘Pay now’ nothing happened. I got on the chat with someone and nothing could be done. The thing is that most customers won’t take the time to message us to say our website is not working.