I'm also finding HS somewhat buggy. I find Safari crashing on my Mac Mini with 8GB of ram. Sometimes when it's in sleep mode the power light goes out and the only way to get it out of sleep mode is to press the power button which then gives me a faded white screen and whatever I was doing in the background. I wait for around 5 secs and everything comes back to normal.Yea, and that's just it. My app didn't work, and the app was iMovie! lol...And I'm not saying that High Sierra didn't otherwise run ok, but that's just it, I don't want "ok". I want better, more stable, and if there are new features, it would be nice if they worked too.
Windows 10 x64 OTOH has been rock solid on every PC i've installed it on, including two 11 year old laptops.