This does not make me very happy. I already own the tablet, so I get the service for free, but I can't recommend it anymore. For $ 100 per year, it's fairly expensive just to own. And without the service... I mean it's usable, but not something I'd recommend. reMarkable does not support USB mass storage, but it has a pretty buggy Web UI over USB - which will be your only choice if you choose to go with the No Plan route (as far as I understand it). I'd be fine if they were charging for "premium features", but the file synchronization PC - tablet is a needed feature.