It has just been a month or so for me with Scylla. The documentation of Scylla is an area with shortcomings and needs to be improved. Improvement of documentation is needed considering that I work with Java. We currently use a data stack model, which is actually for Cassandra. There is no different dependency for Scylla, so it's adding a wrapper on the SDK that Cassandra supports, and we end up just using it.

I think it's good as it is. I don't have any input on what needs to be added in Scylla.

Data export, along with how we can purchase the data periodically, needs to be improved so that the storage is within control. Then, we could optimize it even better.