If the project has potential, a working product, a strong team, there is nothing wrong to take part in the ICO. His tokens will grow. But in any case, you should understand that any investment involves risks. By investing money, you no longer manage your money, it remains to hope for the project team and their success!
You can't know exact what will happen for your investment.
Sometimes, all things are ok, such as devs team, old work, hype, community, raised hardcap, etc. but still has a high price in the market.
Aventus, KICKICO, EDO are the ICO projects had same case as I said.