I feel there is a difference between promising the earth and making a product valuable to society.
Too many ICO's have schemes of grandeur instead of being transparent and open with their investors.
One project I am liking it Crowdholding, communicated with them a few times on their thread and over telegram and i've always got the responses even if they are not the prefect answer that has been rehearsed.
https://ico.crowdholding.com