We have monitored the ICO advertising market very thoroughly and our impression is that currently classic advertising is not working/only working on a very large scale ( 7 digit marketing budgets). The market is overcrowded with illegitimate ICOs shouting impossible gains and touting unfeasible business models, if you stay realistic with your advertising there is now way to be heard trough all that "noise".
That is why we have decided against burning more money on typical advertisements.
Instead we are building our community and try to spread the word about our project via social channels, this approach is working very well but it is obviously slower than bombarding people with adverts for X,000,000 USD.
After all we are at an early stage of development and can see a lot more funding coming in as soon as we can announce the first milestones.