There isnt an advantage other than adding a DRM layer so you can't print as many as you like. It says in the help page that you can restart the print as many ti

There isnt an advantage other than adding a DRM layer so you can't print as many as you like. It says in the help page that you can restart the print as many times as you like, but after 80% you have to mail them to get another try. This seems to solve a problem the sellers have, not the customers (printers). (Nevermind that you can just grab the gcode output and save it for later if you want to)