there are somanygreatdatabases out there. There's no need for one that has been mediocre for years and continues to make false claims. This is an issue of years of super aggressive marketing of an inferior product making it hard on engineers.
I think if you compared it to other databases that are designed to scale horizontally like Cassandra and DynamoDB, you might have a more favorable opinion. IMHO, most products at this scale are terrible in different ways, because it is a difficult problem to solve generally.
I have been responsible for <100 clustered Cassandra instances, and <500 clustered MongoDB instances, and I would choose the latter every time.
