I'm glad to see a competitor to Trifacta/Google Cloud Dataprep. My company relies on it heavily, but we constantly run into bugs, UI glitches, and crashes that can sometimes block people for hours or days. It's the sort of software that you hate to use, but the benefits are too good to ignore.
The benefit to visual ETL is that non-engineers can do a lot of basic data engineering. We tie this into our more complex code-based ETL pipelines. It was a game-changer for us and helps us get a lot more done.