Nextcloud pleases A LOT 10% of it's users. Those 10% are composed by tech savvy people, coders and developpers that spent countless hours tinkering with their instance.
I'm one of the 90% left. Despite really wanting to use nextcloud and trying to set it up correctly for 2 years, I finally gave up and I feel much happier in my life, in my work, with my family and friends, and they thank me for that.
Now I just recommend Owncloud or seafile. They're both really easy to install and just work out of the box.
Out of habit and convenience, I keep a nextcloud running on oracle free tier just for what it's good at: caldav and contacts.