For your guitar input you'll get Z-TONE with AXE I/O which is a really great feature. I have two AXE I/O and I love plugging guitars into them and getting such a solid tone.
You do get the software, including great guitar gear but also 10 T-RackS processors. You even get one that's modeled after an SSL console channel (White Channel) so you can still get SSL sound with what's included with AXE I/O
You can also add the T-RackS British Channel later if you
really need that 4K sound (but honestly I prefer the White Channel myself and I've used both boards the British and White Channel plugins model).
You also get Ableton Live Lite if you want to try Ableton as a DAW. It is a pretty cool DAW and you also can try Reaper for 60 days free and it is cheap if you decide to buy it too.
Last but not least, since you are recording your guitar through a real amp/cab mic'd up, you also have the ability to easily re-amp (run your clean/direct - and solid due to Z-TONE technology - guitar signal) through a different amp/cab/mic setup.
The preamps are quality, too, for your other non-guitar needs.
I think these are pretty compelling arguments for
AXE I/O for your intended uses.