They'll be insanely good if they're half what he had discussed with me last year.
Of course he said a lot was on the chopping block since he needed to compromise between a lot of factors before deciding on what could realistically be done in production.
What he did say was very flexible (multi-channel options to true mono....like the esx's or hifonics gen X) Also flexible pre-amp options (burr brown, or possibly choice of tubes from cheap, to high end Russian). And he wanted them to do full power from 8 ohm to 1 ohm. His exact words were "...and if you wanted to be an asshole and run them at 1 ohm, they could do that too." If you ever talk to Stephen, don't mention 1 ohm
Near as I know, the Lanzars that he did were all the Opti with model numbers XXX.X like 100.2, 200.2, 500.2, 1000.1D (I think there's a 4 channel that's his too) They all have the sort of rounded heatsink as opposed to the squared off Korean made one, and they say "designed and manufactured in USA" as opposed to "designed in USA" on the Korean ones. Pre-amp options on these Optis are very nice.
Early Hifonics boards look very primative and sloppy (from what you can see on ampguts). Anything beyond VII have a certain look to them and I'd consider them all rock solid....barring the Lanzar Opti1000.1D which apparently have some issues with inadequate output transistors.
I saw an M&M amp on eBay a while back that the guy said was Zed made. I'd like to verify that, but he didn't post internals, so who knows? Most of his boards in addition to having a certain look have "zed audio" on them, and many of the early ones had other little easter eggs like "this is a big mutha" and such.