I can't speak for the quality of other object storage providers, but being in the storage business I can say that if someone is running Ceph, find another provider.
Salesforce runs several large Ceph clusters, and they have a dedicated team to run it. If you can't invest in the employees, you should invest in commercial support.
Salesforce also commits a lot of updates and patches back to the Ceph community
However, improperly designed/architected you will end up with serious scaling issues.
It's important to actually test things.
There is no other software, open source or otherwise that works quite as well as Ceph for providing durability and scale.
ScaleIO gets high marks for block storage performance compared to Ceph. It's not quite as durable and lacks some other features, but people seem to like it.
These sound like... problems with Ceph.
Sane deployment, management, and troubleshooting are critical features of any distributed system.
If they’re not there the system isn’t “ready”.
Personally, I feel like Inktank was pretty close and when they were acquired by Red Hat, progress seemed to slow to a crawl.
I haven't run the last couple of versions. It could be much improved. Certainly bluestore is promising for performance.