One thing to note: you must be present (in the same room as the printer) for the duration of the print.

I mention this because it was quite a limiting factor since prints can take awhile and logistics around appointments are challenging (e.g., Saturdays fill up quickly, so you're left with T/Th during typical work hours). There isn't a very good way to take calls or meetings, which I learned the hard way.

To schedule an appointment, they create a unique link for you once you've completed the training.