At the ICO or IEO stage, many projects look interesting, but no one knows how the team will work after they collect the necessary amount. I remember many projects that looked promising and the team was active, but after the ICO any activity of the team disappeared and even in the telegram group of the project it was impossible to get a clear answer about the development of the project. Therefore, I think it makes sense to wait until the end of the ICO and the launch of the project, after which I think to buy or not coins of this project.