The good:
- does what it says
- cross-platform sync works well most of the time
- free tier more than enough for most use cases
- open source + self-hosting options

The bad:
- the UX is bad and inconsistent, and hasn't improved for years. you get sort of used to it
- serious performance issues with some "dynamic" pages (home assistant in my case)
- was recently bought out by a private equity firm