I just bought 5 amp-captures (friedman, marshall, fender, tworock, toneking) and I am literally blown away by all of them.
I am new to the quad cortex; I was looking for something to make things easier (I used a Mesa TC50 Head and a huge pedalboard) and was ready to make a little loss in sound quality in comparison to the real tube amp for the advantage of less weight. I already tried free captures and they were good. But I admit amalgamcaptures are the same or better than the real thing. Its all there: feel and sound and response; whats missing (and this is a good thing too): the dirt channels are less noisy. So to sum it up: I couldnt believe that this is already possible and coulndt be happier!