Well for an ICO what I will look before investing is..
1. Authencity
2. Reasonable profit provided by the company
3. Previous strong investors
4. Great startup or a nice business idea
5. Future planning
6. Well known around the world..
Many other factors will I consider before investing to join it..
The legitemacy of the company and the attitude of the team is for me the most important. And all others will follow. Because with good attitude, success is just so close.