The website is fine. Please don't detract from the topic. Whonix is unanimously considered the best Linux distribution in terms of privacy and security. You can also run it in Qubes OS. It's intended to run on Virtualbox for now. One VM is for network access, while the other one is connected to the previous VM for said network access, and it's the one you should use. This is to prevent any de-anonymization attacks.
Indeed. For anyone who isn't convinced, I wrote up some details on our use case (creating a training data DMCA safe haven) in the Tails thread: https://news.ycombinator.com/item?id=37512147
If you're serious about protecting yourself, Whonix is a requirement.