The success of ICO lies in the hand of huge partnership support, huge investors and trust but since scammers canes around ICO trust was ruined but now what we have left is IEO, and I will keep repeating myself over and over for new projects that the success of an IEO is top exchanges, no matter how good your use case is, if you choose p2pb2b or vindax over Okex or binance just have it at the back of your mind that failure awaits you with 80% chance over 100%
I agree that the sale of tokens also depends on the partnership made by the team. But the success of the sale of tokens through the IEO method is influenced by the exchanger where the tokens are sold, because early investors in my opinion want to speculate and make a quick profit. If the IEO organizer exchanger is a large exchanger, the sale of tokens is usually successful only in a short time.