Same here, had the G system for quite a while, good unit apart from the "missing" fx and drives.
I then went back to pedals, have a PT3 chock full of Strymons, Fulltones and Xotics etc with a Looper that also does Midi and amp switching.
Saw the Helix and could see that it was miles ahead of what the G was (which was the easiest unit set-up wise out of everything) so pre-ordered it early on.
It will be used in 4CM into a Bogner Shiva but also thinking the options for runninf a different flavour preamp into the poweramp for a few things and also the big big benefit - no further need for a backup amp at gigs - if the amp goes down I'm planning to have a bunch of backup presets which will allow me to rung direct into PA..