Haven’t used them in production because their license doesn’t allow operating as a service.
I have used an alternative.
I have used an alternative.
What is prohibited, however, is you can't take CockroachDB and try and offer a hosted CockroachDB-as-a-Service to external organizations.
But if your organization has a DB-as-a-Service offering internally, you can totally add crdb to the mix (this is pretty common, as a matter of fact). If your org offers a service and its backed by crdb, you can totally do that, too.
Other reasons: it’s Postgres code under the hood, not a rewrite, so you can use existing extensions. I have even contributed the support for FDWs, which I use in production.
More here https://gruchalski.com/tags/yugabytedb/ and here https://github.com/radekg/yugabyte-db-multi-tenant-paas-demo.