Fwiw, after taking a closer look and reading through the "manual" (which is really just a selection of screenshots with some descriptions), I gotta say that apart from the great sound, this unit isn't ready for prime time especially when playing live.
Pretty much each and every modeler on earth allows you to connect external pedals, so you can perform additional switching and control functions. None of this on the Amperium. So, should I want to add a volume pedal a a proper position, the only way would be to use a physical volume pedal and insert it in the loop. Also there's no way to add a wah at all, again you'd need a physical wah pedal.
Then, there's also no way to switch anything within a patch - something plenty of folks are doing all the time. So, even if your needs are rather modest and you only wanted to, say, switch a delay on/off within a patch (something so typical it's possible with pretty much any modeler for over 2 decades already), that's not possible. As a result, even such an extremely trivial thing requires you to save two patches already, which isn't too great as there's always only 4 patches exposed at once before you have to switch banks. Add an additional drive that you might want to switch and all possible combinations (4) will eat up your entire bank already.
And it's only getting worse should you want to change, say, the amp gain on the main patch the 4 patches are based on, because you will now have to do that 4 times instead of just once. Perhaps on an onboard UI offering pretty much no assistance in quick editing, to put it carefully.
Yeah, I hear you folks already, "booh, the local contrarian yet again" and what not. But take a moment and think about the things above. I'm sure you'll see how these (IMO massive) oversights could impact sales, at least as soon as it comes to live playing. See, as is, if I only had the choice between this and the rusty GT-10 to attend a gig, I'd rather use the GT-10, pretty much without wasting any thoughts even.
This might be a kickass unit for sound nerds, but it's likely the worst "all-in-one-modeler" recently released when it comes to live playing.
So, no, I'm not just the "local contarian", I'm simply pointing out some things - and in case the St. Rock folks consider coming up with further hardware modelers in the future, they may consider some of these things.