I would not invest into the following kind of ico projects
1. Me too types
2. The one which doesnt integrate the token into the project
3. The one that doesnt really solve any problem
Regarding the 3rd point, I think that every project believes they solve a problem. The question is rather, is the problem they want to solve something that the community feels it is a problem that is worth to be solved in terms of investing resources. Look at Raiden and Quantstamp, they solved real problems but still are not going anywhere...