Which ones of those use cases does Celery not fulfill? I currently use cron, which is pretty bad, and have an eye to move to Celery in the future. (Because it s

Which ones of those use cases does Celery not fulfill? I currently use cron, which is pretty bad, and have an eye to move to Celery in the future. (Because it seems legit.) Will be pretty disappointed if it can't handle those reqs as they seem pretty standard for a job scheduler.