As usual with videos here, if you want a larger frame and higher quality then click through to YouTube, as needed:
Good stuff and well balanced. There's also a companion video from Lisa comparing the Duo to the Galaxy Z Fold 2, which has lots more good footage. From the description for this comparison:
Lisa Gade compares the two most ambitious and interesting phones of 2020, the Samsung Galaxy Z Fold 2 5G phone that unfolds into a tablet and the dual screen Microsoft Surface Duo with 360 degree hinges. Both Android phones change the way you use a phone, in very different yet sometimes similar ways.
And I should re-iterate that this is still a USA-only product, so there's no easy way for me to get hold of it for review. (Unless one of you has imported it and is happy to lend it for a week?)