I like that it's easy enough anyone can figure out how things work with little training or experience required (which was very helpful when we were first getting started). The UI/UX could be better - there are some features which take multiple clicks just because they're not obvious at all from clicking around in general but maybe this will improve over time? We've been using streamanalytics as part our ETL pipeline so far; however since its built into Azure Data Factory now you don't need any additional software if your already running ADF!