I pre-ordered mine about a month ago. PyramydAir has delivery date as 1/12/22, but I really don't expect to see it by then. In fact, with the general world situation regarding supply chain (and so on), it wouldn't shock me if these never come through. But I'm keeping my fingers crossed, because I really want one.
I have the Umarex MP40 and M1 Thompson. Love 'em. The MP40 is a little more enjoyable to shoot for several reasons. I'm thinking of writing an article detailing the pros and cons of both. Would there be any interest in that, I wonder?