Meltano is an open source data integration (EL) tool that unlocks software development workflows for data movement, giving you complete control and visibility instead of a black box. With Meltano Cloud, you can deploy your pipelines to production in minutes.
Very quick and easy to get up and running. It takes care of 95% of all my use cases. Extremely flexible and easy to develop with their SDK. Their slack community is easily one of the best I've dealt with.