Have this thing for a few weeks now and am really amazed. Thick bottom end, fuzzy warm highs. Built like a tank and very very pretty to look at. I am running it in combination with oranges own 1x12 cab, they harmonize very well. If you want really sparkly highs, I'd suggest you run it with a tweeter or a 4x10 cab.
The preamp valves really add a lot of warmth, from classic rock sounds to motown goodness, you can get almost all the shades out of it. Because the power section is SS though you dont get a really fuzzed out sound you might excpect out of an orange. But just add a pedal and you're good to go. Also: the addition of the clean switch on this newer model really works wonders. One gain stage less and it delivers crystal clear clean sounds. Ramp up the gain on that setting and you can feel like James Jamerson for a minute.
Nothing bad to say about this thing, highly recommended!