I did the last preorder round which was March 27. They initially indicated it would ship around April 30th, but they sent an update about delays in the manufacture process due to holidays. They got the devices at the end of April, they do a bunch of QC checks and it shipped out mid May. Took about a week to get to me.
It definitely isn’t a fast process, and that might because they are doing smallish manufacturing orders and not stocking items.
So far the drive is working as expected, and I don’t even think about it, which was kind of my goal.