These go to 12!!!!!
I tried it yesterday at my local GC. The guitar repairs guy who knows me forever left his bench and came over 'cause he wanted to hear it to, along with the sales guy.
I tried it with an american strat, a Dimebag Darrel signature Washburn, and a Les paul standard. We A/B it with the JSX that was right next to it, the Windsor stood up to the JSX pretty damn good, apart from those special switches the JSX has, they sounded pretty alike, the tubes are all the same for both, 3 12AX7 and 4 EL34, although I would modify it for KT88 power tubes, and bypass those 2 filter knobs, but that's just personal preference.
Too bad we could only turn them up to 3, I would really like to crank it up and hear those tubes at full power.
The cab wasn't all that, don't know what speakers has, but I'd get one with greenbacks on it.
All in all we came to the conclusion that you can't beat it for that price, they knew I didn't have the money to buy it so there was no reason to lie. We said that if you like the JSX better because you need more channels.... might as well buy another Windsor and it will still be cheaper!!!
Although I would still like to turn it up to 11 and see what is made of!!! (actually... these go to 12!!! no kidding!!!!!! we're gonna be louder than Spinal Tap!!!

hahaha)