ScyllaDB, formerly known as Cloudius Systems, is an open source-centric company, led by the originators of the KVM hypervisor and employ superstar virtualization, database, and OS veterans. The ScyllaDB team is behind OSv and Seastar open source projects
The speed of writing and reading, along with maximizing resources in a zero-config way for servers where it's installed is insanely useful, even if it's not completely API-complete against Cassandra.
What do you dislike?
The license (Affero) was too restrictive for our organization, so we had to pass on using it, despite the ease-of-use and speed benefits.
Recommendations to others considering the product:
If you can afford the Enterprise license or are not bundling it with a solution for sale it is a no-brainer for the use case of storing dynamic tables
What problems are you solving with the product? What benefits have you realized?
We would use it as a backend store for longitunidal patient data by data type. Our current solution requires a ton of tuning and node investment that would otherwise not have been necessary if we went with Scylla
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