in a calculation, investing in an ico project gives us the opportunity to make a big profit. but for now ico projects are high-risk things, some projects fail and that certainly makes us suffer losses. so choose the right ico project and don't lose it.
I think it is hard to know which ICO is good ,most of the times they just write a peace of sheet and call it whitepaper , hire a designer and start asking for money because their project is gonna change the future 