I owned one for about 6 months, my thoughts were pretty much this:
-Clean sounded great to me, could be glassy and chimey, or crank the gain to get an almost ac/dc grit
-Blue channel was cool sounding, but it always felt lacking to me without a boost
-red channel, tons of gain, but very flubby feeling without a boost to tighten it up
-the volume difference between clean and blue channel is annoying at low levels if you don't keep the gain around noon on the clean channel, but at higher volumes it is not as noticeable
-effects loop just seemed okay to me, nothing special
so all in all, I just didn't jive with the amp, it seemed just kind of mediocre to me, but after hearing so many people praise the amp I think it was more that it just wasn't what I was looking for. The best part of it to me was the clean channel and the size/weight of the amp.
I ran it through a Randall XL cab with V30's and an Ibanez open back 2x12 cabinet with celestion seventy/80's, felt like the amp had a bright characteristic that was hard to get rid of. I really liked it when I first got it, but after the honeymoon period I realized that I was just trying to get the amp to sound like something that it wasn't
Just my thoughts!