Since there are so much publicity about Power BI , I have notice that one thing Qlik View developer will still be like to stick to qlik view because of the Qlik View script is much more simple compare to Power BI , which is not so flexible , for example need to change the Date format , it request many step. Or Flag Duplicated name.
In conclusion , only those people never experience of Qlik View will choose to use power BI , because price is cheap and support IOS mobile.