Don’t Install if You Are Worried About macOS High Sierra Problems
Are you the kind of person who hates problems that pop up when you are the first to install new software? While there was a lengthy beta to squash bugs and allow developers time to deliver updates to apps you may still see some macOS High Sierra problems. Now that December is here, there are fewer issues, but there are still issues with macOS High Sierra.
If you don't want to be the person who needs to deal with these you should wait a few weeks to install macOS High Sierra. This will allow other people to do the testing and it will save you the trouble of figuring out how to fix them or the hassle of downgrading to macOS Sierra.
You can also check to see what apps work with macOS High Sierra and more importantly, which ones don't at this list.
Some users should still consider waiting to see what is next as Apple is going through a rough patch of macOS High Sierra issues. The update is better than in 2017, but still not perfect, especially with external displays.