I had one, and I sold to Mobius hee hee, so here's my take.
I find that the cleans are not that great (a bit thin), I actually like the clean on my Smarvo better, coz that time I brought home the Ad30vt and compared side by side, eventualy I sold the ad30vt. Clean veri important to me, so depends on what you want. The strength of the Vox ad30vt is the overdriven tones, high gain not so good.
But it's a good amp if you're not sure what you want, coz it really has quite a lot of stuff packed into it. Also, the internal circuitry of the lower end Vox is actually the same as those found in Korg multi-fx, just that it's now powered by the tube, so sounds a bit better.
But try it out, don't buy on impulse like me... hee hee.. try it for some time before deciding.
Pier.