Cloud Sync to Immutable Azure Blob w/ Versioning

Curious if anyone is currently using cloud sync to an immutable Azure Blob w/ Versioning enabled. I’d be interested to hear about both your setup, as well as how well it has/hasn’t run… any ongoing issue or lessons you learned? Any unexpected storage costs. From what I understand, the only reads on Cloud Sync are too the database file, so other than the ongoing storage cost, there should be much else. My data is 99% long term archive, so there will be very little changes.