From not only my experience, but also the experience of others: Investing in ICOs can be good or bad. It all depends on your ability to recognize a good ICO (this skill can be easily developed). When investing in ICOs, you have to be comfortable with the fact that you will lose sometimes. However, with some practice and A LOT of researching ICOs, there is much money to be made (One of my friends made over 600% from ONE ICO)!

Good luck and stay safe!