I am still a valve amp guy, and i've owned a few over thirty or so years of gigging , though i've come to the conclusion that whether i'm using a Fender ,Orange, Marshall, whatever, .. my current Mesa, that i just end up getting them all to sound the way i like them to sound.
The problem i have live is the mic'ing up of an amp, which can fluctuate massively based on there being so many permutations,.. so the Helix could cure that problem ?
Absolutely,.. i'm using the Helix in the fx loop of my amp, so i still have the amp in the room thing going on , yet i get a consistent pa sound without a mic, and tbh it sounds way better front of house than the old mic ever did.
I've plugged into a lot of those valve amps that i mentioned , and on first impression was less than impressed ,then spent some time tweaking them till i really liked them.
The Helix is no different, but it does so much more as well, and i'm still very much loving scratching the surface.