Is there a list of ICO's that delivered on their initial promises (or even a substantial fraction of them)?
Tezos intends to solve the contentious fork problem by incorporating the governing structure into the protocol. Whether this works better than what is currently happening in the Bitcoin community remains to be seen.
Back to your initial question. Ethereum is a good example, but most of the ICO's that raised money recently won't launch until 2018-2019 at the earliest. In fact, some of them have innovation gaps. It's a long road.
How? I have yet to see anything useful built with it. Except for more ICOs whose use for now is moot, what problem does Ethereum successfully solve today that makes you say it delivered on its promises?
Edit: I also have some of their tokens
As Jimmy Wales of Wikipedia says, "If everyone reading this donated $20, we would only have to fundraise for one day a year". Sounds like that would be a better way to spend money rather than on a vaporware pre-alpha token
The ICOs haven't had a chance to deliver yet like I mentioned in another comment. Ethereum is the infrastructure and whatever is built upon it is up to everyone else.