ICO is a form of investment that can bring big profits when it index, you can x10 x20 the amount you have invested. But this is also a form of high risk investment. You can take Describe the following to evaluate an ICO or other crypto project:
Team established ICO
The topic of that ICO on forums or review sites about ico
Development Roadmap
Community and media support
Review the Whitepaper of the project
Quality code (see on Github)