I am quite interested in both Cockroach DB and YugaByte. The new age scale out SQL databases. Does anyone here have used any of these in production at scale? If

I am quite interested in both Cockroach DB and YugaByte. The new age scale out SQL databases. Does anyone here have used any of these in production at scale? If yes, how was your experience? What are the problems you faced? How is TCO compared to something like AWS Aurora?