Long story short...Several months ago, I traded my AD30VT off for another amp, and sold that amp and got another, and sold that amp and got another...you get the idea. I did, along the way, settle on an old Fender Champ as a keeper.
I did something similar. I initially started with the AD100VT and wound up trading it in, trying another amp, etc....But later on wound up getting the AD50VT212 and installing a set of Celestion G12 Century Neos (which might sound crazy on an amp that cost $450 new), but the longer I have the amp, and in comparison to some of the others I've tried and played, I'm really liking the Valvetronix more and more. It sounds better than some of the production tube amps I've tried.