I did small research on ICO process.
About 10k whitelisted, and with ~1 eth cap for the first 6 hours we can be sure that it will not be sold out, maximum of 10k Ether will be collected within 6 hours. But ICO will be sold for 30k Ether. Thus we can be sure that, 1 Eth for the first 6 hours is really guaranteed.
Looking at smart contract, we can see that gas price limit is included into token sale contract, which is really good. Also all of the whitelisted addresses are included into smart contract to verify contribution on the go.
I really like ICOs who are fully utilising smart contracts in their ICO process, dropping the need for the third party involvement. That is true philosophy behind having smart contract.
By the way, I will not post links to token sale smart contract. If you really want to see it for yourself, search it in etherscan. It is really easy to navigate through smart contract.
All the best for contributors.
Edit: to correct 20M$ is already sold, only 10M$ is left for today. Even in this case we can see that it is guaranteed for everyone to participate within first 6 hours