The question you should ask yourself is p,what makes an ICO to be legit. Most ICO will in all ways present themselves as legit, but there are some factors you should look out for when investing into any ICO. First, is a well written white paper, which must explicitly talk about the intent of the project. Second is the team, it must gave a working team. Third, is the use case and fourth is the community. There are other factors as well.