I have Ps/Ai/Lr CC and let me tell you that for an "optimal" touch experience, you're gonna need CC minimum. CS6 = tiny UI everything, unless you do the manifest hack. Ai/Ps CC even comes with a dedicated "touch" mode that embiggens the buttons even further for finger use, though I often just use them in "normal" mode.
With the manifest hack, CS6 works well enough too, though it's far less touch "aware" then CC which complicates things somewhat.
SAI should also work fine due to the fact that the Miix uses a "full" Wacom setup and runs the same Feel drivers that most drawing tablets do.
That said, I don't really draw (Ps is more my photo editor, and Ai more for logos/typography/publications) but I do take a shit tonne of written notes (Squid on Win10 is so much winz that it's not funny lol).
Also, one of the latest Win10 updates sort of added system-wide palm rejection of sorts, as it disables touch input when the pen is within hover distance EVERYWHERE. Which helps A LOT when I take notes (and should help for folks drawing too).
It's not "perfect" though (sometimes, while resting your palm on the device you pull the pen tip a tad too far from the the surface and your palm starts registering again) but it's much better than the Win 8 days that's for sure.
As for other issues, you need to understand that by nature Wacom AES (Miix) isn't like EMR (Samsung Note). It's more accurate and doesn't suffer from corner issues, but conversely it jitters somewhat if you draw too slowly and hover distance is slightly suckier than EMR.
Otherwise, it's a pretty awesome experience really, and decently comparable to my experiences with my old Note 3, but now with the power of full desktop software.
It's especially good compared to the epileptically jitter happy Synaptic pen on the Switch Alpha 12. I can't even take notes decently with that one, and not being native Wacom, you'll need all sorts of drivers and stuff to make Ps/SAI even notice it's existence.
BTW, I if you haven't figured out by now, I actually picked the Miix 510 over the Switch primarily because of how much better the Wacom pen experience was. So yeah, if you need a pen, get one.
yup they say switch pen was crap. anything with wacom is really reassuring having own a wacom drawing tablet myself (not sure integration for 2in1)
jittering wise will not be an issue. software like Lazy Nezumi pro can address this issue.
overall, thanks for the detailed explanation, will be exploring i5 version or i3 if bajet constraint