I took Hadoop and Spark online training from DataFlair and It was very good content wise and helped me learn new things. Course content was very good and sufficient. Instructor Mr Anish was too good in explaining things in very basic level and always helped us with all my doubts. Best part of the course was learning new technologies, scala programming language and challenging assignments that instructor gave. I would definitely like to refer it to people who are looking for career in Big Data as I feel no institute can give better training than Dataflair.