more on the dark side, i'd say. not too well up on classic fenders, but i think that's tweed character? i guess that's not far off early marshall character either, but i'm not too well up on vintage amps.
don't play much rock n roll, don't see why it wouldn't do it (could be wrong, of course). could get up to classic/hard rock on the overdrive channel, which is also quite dark/smooth sounding.
i liked the one i tried, but i thought it was quite expensive, and i prefer their high-gainers more, it did feel a little like them building outside their forte, for want of a better expression.
it's a while since I've tried one, too, and my ears change all the time, so please don't take what i said as gospel.
But if you can get it for a good price, might be worth considering. :)