Well, my life was an absolute rollercoaster just after the Stomp came out, so I put it on hold. Even now, in Jan 2020, things are pretty intense, but I picked up a HX Stomp in the Black Friday sales and I am SUPER impressed.
I did own a full fat Helix Floor, but I found it too large, and I just didn't need that much power and control.
Even on guitar, I am finding I have enough processing power, in a tiny box, for what I need.
The quality of the unit is excellent, the sound is great, and the flexibility is so fun.
I have yet to try it with bass, but I can't wait!