marketplace needs a six star review option for this
Matillion is like Jenkins for data workflows. All the first class functionality is there, support for multiple environments, API to export/import configs in CI/CD workflows....its all there. Easy enough for non-coders to build workflows in an intuitive GUI, yet powerful enough for advanced users to write ad hoc SQL, write python code, or even bash.
If you are handcrafting ETL, or paying too much for an ETL tool that does way more than you need....Give Matillion a try. It's laser focus on AWS component integration and specificity to Redshift means you get a boutique experience in the AWS environment. The ELT (extract LOAD transform) approach is super innovative and saves lots of money/admin overhead for ETL worker pools.
Matillion still shows its youth a bit in some very minor places, but the Matillion support team is unbelievably responsive, and they are very open to feature requests. Matillion is a requisite part of any standard Redshift>Tableau data platform on AWS.