Actually, I havent tried to join ICO projects, but one of my friends have tried it, and he actually  find it good, but it just takes time. Todays, there were a lot of ICO projects competing in the market, and it seems that for it to be successful it requires support from the market. Then if this not succeed, it is bad from its members who have joined, so it is kinda risky for everyone wanting to be more profitable through joining in any ICO project.