Kendo UI is like a luxury SUV. It’s comfortable, reliable, and gets the job done in traffic. But you pay a premium at the pump (and the dealership). If your company has the budget and you hate wrestling with open-source data grids, it is worth every penny. If you are bootstrapping, look elsewhere.
Despite its power, Kendo UI is often described as a "heavy" solution that requires a significant commitment. 8 AG Grid Alternatives for Your Next Project - Infragistics kendo ui reviews