A good ICO project, which depends on each specific project, and the team behind the project. Whitepaper Review of ICO Projects, Most Typical Investors Do not Read Through Whitepaper. A good ICO project has also reported on Bitcointalk.org before the ICO, Bitcoin is the largest forum and also the first forum on Bitcoin and topics related to coding. You should read the user's feedback carefully. The interest of investors will be answered or not. If the developer avoids answering a few questions, it's a bad sign.