To be honest I've not really used it very much, but it's functional and simple. I have nothing against it, other than "If I've not really used it, do I really need it?" (hence it being on my "Undecided" list.
It's worth mentioning the docker hub image is very out of date, but the github is active as someone else took over.

Currently all LAN only, still in the experimental stage finding out what's useful/preferable to me and what I want to keep:

KEEPING
Pi-Hole - ad/malware/tracker blocking
Portainer - Easy Docker
Syncthing - Sync folders between devices
Planka - Kanban board
I.T. Tools - Handy I.T. Tools
Bookstack - Personal documentation
Mealie - Recipe manager/meal planner
Jellyfin + usual accompaniments - Media Management
Navidrome - Music library
Changedetection - Stock monitoring
Gotify - For push notifications from other apps
Filebrowser
That Word Game ;)

UNDECIDED (may swap for alternatives or just remove)
Organizr - Homepage
Jump - Homepage
Homepage - Yup, another homepage!
Linkding - Bookmarks
Shiori - Pocket replacement
Etebase - CalDAV & CardDAV
Whoogle - Google without the crap
Photoprism - Photo management
Libreddit (not being used now!)
QBittorrent - for Linux ISOs
Uptime-Kuma (for when I do open a few services to family)
Ryot (beta) "Roll Your Own Tracker" - Media Tracker

PLANNING TO ADD
Reverse-proxying (likely NPM) + Security (Fail2Ban, Autheilia?)
Audiobooks
Comic book management
Translation service
Document manager
Home Assistant on its own Pi4 when I can get hold of one