Alright I have to jump in here. The Line 6 stuff is good. I’ve owned the Stomp and the HX effects. I’ve integrated both into boards supporting 4CM and amps. The best way I can reply to this is to say I bought the stomp originally while I was on the waiting list for the FM3. I set up a bunch of presets on the stomp and thought they sounded good.
Then I got the fractal. It was night and day. The effects and amp models on the FM3 even in 2020 were absolutely in another class. Now with the FM9, it is the **perfect** 4CM pedalboard. The ins/outs are set up appropriately for 4CM and it severely outclasses the HX Effects for the quality of the sound. THe HX is good, really good, but to say the Fractal gear isn’t clearly superior is really missing out.