I think there are a lot of challenges with ICOs and some worth noting on top of others would be that they are not accessible to all or difficult to participate in, and that reviews about them could be one sided for the purpose of tricking investors into trusting them.

It's really not easy to detect scams/vaporware no matter how much effort we exert in doing our research since sources we read from might be misinformation to begin with. Menlo One's TownHall is a brilliant solution to this problem as it basically incentivices legitimate posts and puts a user's accountability on the line with their "proof of reputation algorithm". Say goodbye to biased reviews!

On top of that, people can easily view all (listed) upcoming ICOs and conveniently participate in them within one platform. Awesome