You’re way ahead of me there. I think I printed maybe twice over the course of 4 years with two different iPads, so I have no experience at all with that. I always just saved files and printed from my Mac…
Readdle’s tasks implementation is pretty interesting - I just took a look and didn’t realize that you could choose to sync either iOS Reminders or Google Tasks. GT is getting more powerful of late - for example you can drag an email from anywhere in Gmail to the Google Tasks sidebar to instantly turn it into a task and it’ll keep the email’s subject as the task name, with a link to the email underneath. You can then archive or move the message and still open it easily from the Google Tasks link. And the latest version of GT gained some nice subtask features too. (But as I said above, I’m not using either Reminders or GT right now.)