I just cannot find a use case for Nextcloud. I have gone as far as installing it and sync'ing it with my LDAP for user auth and sync pictures from my phone to my NAS. All the other features are just a big ole m'eh for me.
This has just been my experience, so maybe I'm missing something that would just make it all click and make me not live without it. So far though, I've spun up and spun down an instance 3 times and never missed it afterwards.