The whitepaper is a good thing to understand the project. I contained all the information about the project. But totally depending on whitepaper is not the good thing. It's the only thing to get informed about the project. there are many other things care about before investing in ICO. These days we have to confirm the whitepaper is a unique one or not. Because of the many Scam ICOs are copy the whitepapers from the projects. In my opinion Team and Roadmap are very important than the Whitepaper.