Note that the marketing might make you think it's a drop in replacement for Postgres, and while it is very impressive, it lacks many common features and some are just different enough to be confusing.

The first difference I ran into was ALTER TABLE commands could not modify the datatype of a column. (It should be added soon.)

Your app probably won't "just work" -- yet.

But IMO this is the coolest open source database with a bright future.