I have one on order... waiting for them to ship. Here are a few dope vids that dig into the operation of the unit and the workflow. Helped me understand the unit better.
Workflow video from Elektron shows how to work with imported sample and build a beat.
Good video of Dataline making a track. Gives you a peak into the sequencer and filters etc
Walkthrough - workflow and in depth explanation of how to get started with most of the features. 1 hour long
Mega Tutorial. 1 hour long