I've just picked it up from Sounds Great and given it a quick run through. Build quality seems pretty top notch and sturdy, the amp looks a million dollars and everything works as it should.
Power reduction/scaling works really well, at TV volumes you still get plenty of character and oomph. The amp does feel like it wants to be wound up to gig volumes though!
#34 mode is a lightly modded JCM800, and so it's quite clean, bright and twangy in my living room. I'm looking forward to trying it out at rehearsal as it's classic JCM800 - I think it needs the back end cooking to really shine.
AFD mode is what everyone's after from this amp, and it's very,very good. I've been playing some Bon Jovi, Skid Row and 90s Alice Cooper and it's got *that* hot-rodded Marshall thing going on. Very similar to the blue channel on my Bogner XTC Classic but brighter and a bit thicker. It reminds me a lot of Brow's Splawn. Oh, and it cleans up great on the volume too.
Overall? I think it's the best Marshall I've ever played. A classic.
Right, back to the playing.........!