Recent 7.0.0 version has dropped old and introduced quite broken new query planner. Caused a lot of our queries to miss. We’ve had the displeasure to work with the support on multiple related issues.
The hype died but the tool is almost mature now and quite useful, plenty of paying enterprise customers who fly low but have fat wallets. I’d give it a few more years to be a primary data store, but it’ll do if you want a horizontally scalable, capable and performant document database to give some breathing room to the primary SQL cluster.
For now, there are way too many critical issues found late in the release cycle.