I find this product very useful in creating dashboards for my organization, it's not expensive at all but what makes me love most is how easy you have access too after using your own API key as well! Not much i dislike about calc fusion except maybe sometimes when we are refreshing data from an external source or running some functions which takes time while loading up. This helps us create reports easily with no hassle of writing codes etc., so its worth every penny paid by our business unit :) It also comes handy whenever there needs to run large amounts of queries against databases like SQL Server/MS BI platform (SSAS)or Oracle Database or even other non-SQL systems(R).