There is no perfect crowdfunding method, but as we all know IEO comes with some quite unique benefits, In my opinion in the near future, it is IEO that is the highlight of the market, it will be a positive agent for the market, gradually replacing ICOs rather than STOs
IEO is a good trend in recent months, but the trend is no longer popular as previously. Now there' s very few exchanges that make IEO, typically I see Binance as real. And now there are rules to minimize speculators, and they sell immediately after IEO is listed to seek profit. But I still think IEO is a good trend to develop.