Chiming in, I'm one of the founders of Espresso AI - we do both query optimization and warehouse optimization, both of which are hands-off. In particular we're beta-testing a fully-automated solution for query optimization (it's taken a lot of engineering!).
Based on the responses here I think we're a superset of where baselit is today, but I could be wrong.
They are more focused on query optimizations whereas we do warehouse optimizations. We are inclined towards warehouse optimizations due to it being completely hands-off.
Though I'm not exactly sure how their product works, I saw from the landing page that it's broadly focused on query optimization.
We've done a lot of experimentation with query optimizations, both with and without LLMs, and we don't think it's possible to build a fully automated solution. However, a workflow solution might be feasible.
Based on the responses here I think we're a superset of where baselit is today, but I could be wrong.