The investment research provided by Investor's Business Daily is unquestionably top-notch. The ranking and rating system of the stocks based on a combination of technical and fundamental factors to select the best stocks at the right time for the highest chances of success is absolutely unmatched to any other research service I have used before. And the book "How to Make Money in Stocks" by its founder William O'Neil is like the Bible of Growth Investing! I read the book before subscribing to this service. And it's the book that convinced me beyond a doubt to sign up for Investor's Business Daily. This book and subscription to this service should be absolutely part of every individual investor's arsenal. I have been a subscriber since August 2017. Their investment research is exceptional as explained above. However, their customer service needs improvement and definitely can be improved. I have been frustrated with it on various occasions. It, unfortunately, doesn't match up to the gold standard of their investment research.