so far the IEO has been effective for raising funds. maybe this is the fastest record to raise funds for several years. and I disagree if Iico is still said to be the best way. actually it's hard to starup really successful by using ico.
Indeed, IEO is extremely amazing for collected funds and hopefully it will last longer. Even though IEO is a new thing, it immediately gets attention in our eyes. While ICO is not the best way to start, hate to say it, but still many projects are trying their luck to do it successfully.