At this time most of the a ICOs which are launching are just doing scam with the people so it is required for everyone to search each and everything before investing in any ICO and yes product is very important because ICO without product means they are not interested in making something successful because if they are collecting investment to make their project successful they should make their product first and on behalf of their product they should collect the investment so for meproduct is an very important thing for an ICO and on that product they should collect investment.