Final Thoughts...
I really like this processor. Its not competing against the Helix or FM3, its more of an expensive mid-range processor. Its competition is the HX Stomp or Pod Go. I'm not aware of any other current gen products in this price range besides the Mooer stuff, and they have lost court cases for algorithm theft so IMO, no one should be buying any Mooer products (or Chinese companies) on principal.
The question to ask, is it worth an extra $100-150 over the HX Stomp or Pod Go? And also, do I need more processing and features to justify the cost of a "flagship" processor? Point of comparison, the G11 and Pod Go have 9 effect slots, the Helix supports 3x as many.
I have never gelled with Line 6 products, and I have bought and returned a few over the years. It comes down to personal preference. I have linked two demo videos below of the sounds (Guitar Bonedo). To my ears, the Zoom does low and mid gain tones better with a more open and articulate sound. If you listen to the demos below, I think you will hear what I do. The Pod Go seems to have a greater selection and focus on high gain tones. I like the G11 high gain tones, but there aren't alot of different amps in this category. I personally think the G11 tones are better overall than the Helix family.
So what do you get for the extra $100-150 over a Pod Go? You get a great interface, you get a drum machine, you get dedicated amp controls.
The interface, the ability to type in patch names on the touch screen, or drag and drop effects makes it easy to use. By default, everything is foot switchable without any programming so WYSIWYG. I have used it for three days and I already feel like I know it inside out.
All 9 effects blocks are flex blocks, so you can make any effect chain you want. In the Pod Go, I think it only has four flex blocks.
The biggest problem with the Zoom G11, the thing that you will wish it did better, is the 9 effect slot limit, which seems arbitrary. If you didn't use any IRs (just the built in cab sims) you will have filled up all nine slots and still have half of the processing power left over. Its not like Zoom is limiting functionality because they have a high-end product above this. The limitation seems more related to screen real estate. As you add pedals to the chain, the pedals scale to fill up the available space, and someone decided that they didn't the pedals getting any smaller on the screen (or looping over to another row.)
Nine simultaneous effects is enough for almost anyone, EXCEPT if you are using EQ blocks. The Graphic Equalizer takes up two slots, and a parametric EQ with only one band takes up a slot by itself. So if you intend to do any EQ sculpting, you will quickly run out of slots.
Anyway, I'm still undecided whether I keep the G11 or upgrade to a GT1000 or FM3. I know both of those products have many more features and would turn into a rabbit hole. The G11 frankly is doing everything I need, it does a good job at the few sounds I use, my only misgiving is the arbitrary limit of 9 effects slots, and how it limits heavy use of EQ blocks.
https://www.youtube.com/watch?v=KaxAeWmpCqY&t=229s&ab_channel=GuitarBonedo
https://www.youtube.com/watch?v=e7fRRU1E7hE&t=69s&ab_channel=GuitarBonedo