It is very good software for data analysis that can be used by many people without any difficulty even with basic skills of using computer or mobile phones! I have never seen anything negative about this so far as there are no problems yet at all.
Definitely recommend to everyone who wants an easy-to use platform where anyone from anywhere around world will learn how analyze their own results easily & effectively like me!! No problem has been found till now but sometimes i get some errors when uploading files which takes time then if you give up after few times your work may also not show properly/get error too soonly due to low internet speed etc.. But overall its one most reliable tool available online for Data Analysis / Predictive Modeling! This helps us understand our business models better than ever before since we started working together here through click voyants team back home India!!