Good stuff. Their 1176 isn't very flexible, but then, neither is the 1176. But Bryce nailed the edge that it can produce. The Pultec tracks close to a vintage Pultec. Not exactly, and there are both units at a studio I use (and I have a pair at home). At this point, that would be the unit to get (this year!), unless you are a bass-player and rock singer, then it would be the 1176 hands down.
I should get the optical unit in soon - the first production units are due March. It should be a killer, too.
There are reviews for the Warm Stuff in SOS, too, that are publicly available now.