But even though ICOs are tricky to predict nowadays, if you are willing to then you can invest in a solid product like Augur, PRL and even the upcoming that Arcblock will definitely have great returns in the long run.
Yes Arcblock is definitely worth looking at, the interest to this ICO is overwhelming, more than 100k KYC applications were submited, and only 12k in Ether is a private sell. It will sell in minutes for sure. While it's too late to register for ICO it won't be late to buy early when it will appear on exchanges. Here are some interviews by popular ICO observers to start with:
Crypto Lark - https://www.youtube.com/watch?v=WmLn9OUEMxw
Ian Balina - https://www.youtube.com/watch?v=_fhfhycmLyA