There's a lengthy thread on this at APUG.
What hasn't been adequately answered to my satisfaction is the evenness of development, because of the thin plastic film holders and the way that the agitated chemicals, via the plunger, circulate in the tank.
As anyone knows who's developed LF film, it's all too easy to get uneven development, like when using too small of a tray, or a Yankee tank with inadequate agitation.
Hopefully they can post their test results early enough so potential backers can make a decision.
~Joe