I've been quite cautious this time round with the macOS install, and I'm pleased I've missed the problems that several people seem to have had.
Is High Sierra stable and ready for business users who can't afford to have their laptop with bugs to install, or should we wait longer?
IMO, NO.
It's definitely working, but if you have zero tolerance on stability issue, you better avoid it at this moment.
I use HS since it's officially launch. And this is the bug list that I reported to Apple so far.
On this list. As you can see, Finder hang, Slow boot, HDD missing after restart are marked as DUPE, that means also reported by others.
iSight freeze never fixed, but because I upgraded my monitor, didn't use the 27" ACD anymore, so I closed it because I can't do any test for them anymore.
Handoff bug (not working when multiple users logged in) seems fixed in the latest version, but still not stable.
Emoji issue clear by an OS re-installation (just cover on top, not clean install)
KP happened 4 times in 10.13.0, but never happen again on 10.13.1 onward. So, I considered that's fixed in my case.
Screen flickering is always there since Mavericks, never fixed by Apple, but that's a very specific issue with the Sapphire HD7950 Mac Editing card. I am now running a 1080Ti, so, bug report also closed since I won't swap in my old card to do the test for them.
In the above list, all DUPE issues are TRIM related on my Mac, once I turn off TRIM, issues gone. Of course I reported that to Apple already.
KP is the most critical one, but they fixed it.
All the other bugs have virtually no progress. Even they are all closed now, but either because my associated hardware upgrade, or found a work around. Not really fixed by Apple.
If you care any of these potential issue. You better wait. Except KP, all these bugs are still there in the latest official 10.13.2