We have noticed that a lot of successful ICOs have exhibited common factors. One of these is their use of hype. Another is a detailed presentation of the company's roadmap.
The product of the project, its relevance to reality and the strong team that can create it are important factors. Promising roadmap after they are applied, and at the end IEO in top exchange. I do not think ICOs have been effective lately. Projects should always pay attention to market demand for better sales, so IEOs are preferred.