I tried that amp last time i was at Matamp, very Marshally it is... it's what i wish my old JCM800 would've sounded like. It was over bright, but it's still a prototype, and that brightness was easilly dialed out. The V30's had been replaced with Hot100's too. It a great sounding 1 sound amp, no switching etc. so limiting for the gigger. The best sound i found was with the master and gain both at half way. If they did it with a working FX loop and a the preamp gain switchable in a head format i'd be tempted!
There was talk of having 2 handles on the top at either side. It was easy to move, but if it had the V30's i think it may have been a bit too much weight for that single handle