Comment by lucamrtl

Just to complete the answer if that's where your question was going - we actually built a prepackaged project that users can use to experiment with ktx before running any kind of ingestion. In our docs we also have a link to a demo postgres, dbt, metabase, and notion that users can access to try out ktx

And better comparisons from the semantic layer space are tools like Wren, Cube, dbt MetricFlow