This is not my own experience, but it might be interesting to guitarists. I have a good friend who is a real gear junkie. He has owned everything at one time or another. His latest flings have been with a Fender DeVille and a couple different Ashtons, which he loves.

Recently, he got a Line 6 Vetta. He is blown away by the thing. One of his favorite amps is a Vox AC-30, and he swears the Vetta cops the AC perfectly. To impress a sceptic, who swore he would instantly know the difference, my buddy set up a blindfold test. The set up was Fender, an AC-30, a Marshall half-stack, a Mesa and the Vetta. The doubter did not even come CLOSE to being able to identify the real amp versus the Vetta models.

I have never heard it myself, so take this with a grain of salt. I offer this info only for the curious.

Myself, I have a Line 6 Flextone II. I love the size, the weight and the wide tone choices. I do not think it outperforms ANY of the amps it is modelling, but it is close enogh for rock and roll, and the flexibility is awesome. It is perfect for playing a variety of styles.