my opinion about ICO is very positive. It is one of the best opportunities to make money. I think it's much better than simple trading, cause if you find a nice project, you can multiply your investments. there are lots of examples of such people who have made lots of money with the help of the ICO.
I agree with the people who write about making a research about a project and recommendations like this. But I would also advise you to trust yourself, trust your feelings about something. I have a friend, who finds great projects, but he misses lots of opportunities, cause he is not sure whether it's worth investing.  If he listened to his intuition he would earn much more money...
but this is only my humble opinion))