Q: Why do I need a backup solution if my service backs everything up?
A: Most of the time those backups are for them, not you. They back up the data in case of a catastrophic event on their end. Data is most often messed up by user error.
Q: If I have a backup of all my data, won’t that be enough?
A: Backing up the data is great, but the deployment time to get you back up and running can take some time. In addition, you won’t backup your metadata, the stuff that makes up reports, validation rules, automations, page layouts, etc.