Ordered mine on Nov 15 and got the shipment notice today, for delivery on Monday. Less than two weeks so I guess they have their shipping problems sorted out.
Monday will be distracting -- every time I head a truck come down the street I'll be waiting for the doorbell to ring -- and disappointed when it doesn't
Would be nice if is supported Calibre but it looks like you can get stuff on/off without using their proprietary software. My fear is that they don't succeed and their software won't run come Mac OS 10.15 or Windows 12...