It seems to me that CoinMagnet.io is still a young service and it's worth to look closely. The best option for you will be to compare the information on different services, and on the basis of the findings, draw conclusions about a specific ICO project. You can also use
https://icorating.com/ico/ this service with detailed information on ICO projects, ratings, the collected amount, etc. I often use it and it helps me a lot, although I also use
https://icobench.com, I like it too. Always check ICO information from different sources.
