monkeymanx
Inspired
The ability to use amps that haven't been modeled, for one. It's also substantially cheaper than Kemper/Fractal/QC for two. For me the best point of interest is the one you mention - capturing your own amps/gear. I like collecting specific kinds of unique amps and gear, almost none of which really exist in software form and certainly not in the axe fx.
It's not that it's "better" (or that it should be), just that it provides easier means of using real sounding tones for much less money and without having to reamp anything.
There was a thread some years back with Cliff explained something about a lot of these amps having similarities. As in, you don't need to model a bunch of amps that effectively are the same thing. I think that is what happens with the capture phenomena though. You have a ton of different amps that actually sound very similar but the cab capture is what is actually making the difference. If you are a guitar player or solo recording person you probably don't need a ton of amps (real or modelled) because you have the couple of tones you really like. If you have a studio then having access to a bunch of amps that sound different (real or modelled) is probably somewhat helpful.
There are so many bad full rig captures in Tonex. When TH-U introduced their version of this I tried a couple of the commercial profiles and was let down pretty hard. It's almost as if people haven't figured out how to put a microphone in front of a cab to get a good recorded sound. There are some good ones out there but you have to swim through the sea of shit to find them. This isn't just free ones but paid as well.
It's sort of like a cab IR pack that gives you 90 shots with one microphone but only 2 shots actually sound good. What is the point other than wasting time? The person that recorded that pack knows those 88 shots with that microphone sound terrible but they still include that as some kind of perceived value.
Either way, definitely interesting times to be alive and record music. We shall soon be replaced with AI anyway so enjoy it while it lasts.