Tested out the system. It only gives 8 minutes to complete the entire thing before 'timing out' (which may be in the final version), so be sure you aren't on a slow connection, and be sure to have everything handy (credit card, add-on features/events already decided).

My connection cut out after the billing info page, but hopefully that was meant to happen on the test version (it was mentioned that it wouldn't be able to process payments yet, so told to use a fake card number).