Not too bad...I thought the lower gain tones were a bit lacking but the high gain stuff sounded pretty good. It would depend on how it "feels". I'm not sure by this demo that it's gonna make me want to replace my tube amp with it.
As an alternative, try a Vox MV50 head instead. Much cheaper (although only one voice per head), and uses similar technology:
View attachment 34960
I have the AC version, and it sound fantastic - chimey and tubey, even with the matching little 8" cab. The Clean version is very Fender-y. Have not tried the Rock version.
Idk...tube preamp/ss poweramp hybrids seem to always promise the best of both worlds but always land just a bit short to convince the average guitarist to abandon their traditional tube amps. There's already a slew on the market in either pedal or head & combo formats....some like em, many don't. If someone manages to hit that sweet spot of 95% basic characteristics of an all tube amp, at gig volumes, through a standard guitar cab, then maybe you got something