I faced some issues a year or two ago. It wasn't then. It was one of the pain points many users faced. One of the issues I faced was scheduled tasks wouldn't show up in Flower. There was no way for me to know if a task was run without monitoring the database. I didn't follow after that as I moved to Dramatiq.
I am so glad to hear that the community has listened and picked it up again. Thank you for pointing it out.
* https://github.com/mher/flower
* https://pypi.org/project/flower/#history