Lew,
the 65 Amps 'London' is like a cross between a Marshall 18 watt and a Vox AC 15. It has a solid bottom end, moreso than the newer handwired Marshall 18 watters I've heard.
What's cool is that it has that EL 84 crunch, with harmonics, and a solid bottom.
however, I think the model they were demoing at NAMM was the new 30 watt, EL 34 amp.