Ive been around for some times now, and what I can tell you is that there is always some risk involved. That's why I try to do the best research possible. For example I have found this interesting ICO called Cointed. They are a working business which is trying to expand, rather than start from scratch. They have some really big names that they are working with like Nvidia and Tas Group. Also like 1-2 days ago they released an official transparency report which is rather big in ICO terms. But always be on the look out and trust your gut feeling concerning any ICO!