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I have a Vox AD15VT for sale at the minute.
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A good friend of mine (ex band mate when we were young) has an old VT30 I had time to try this and previous summer (total 4 weeks - quite enough to get an idea of what a piece of gear is worth), played it with my Vox standard 25 (strat-like), my Telecaster, and my friend's Gibson ES 135 and Guild S70, and while it's not quite as good as a true valve amp, it really comes close. They definitly did a great job on these amps. And I've heard the AD series were even better...