Each year the Business Application Research Center (BARC) is conducting survey across the SAP customers on the topic of BI and is then collecting all the feedback from the customers and present their findings and their view on the overall portfolio in comparison to other products.
I can only highly recommend to take this short survey (takes about 15 minutes of your time) as you are not only get to share your feedback, but you will also receive a summary of the survey and I am sure it will be an interesting read.
Please following this link - BARC BI Survey 2016 - and take the 15 min to give your input to this survey.