Personally, I prefer the usual ico on ethereum. There is much more transparency. And the advantage of ieo is only in the fast listing on the stock exchange.
I can't agree with that, how can you explain the fact that more than half of the ICO projects are scams?
ICO is bad for new investors, they are not fully aware of the scams yet, at least in IEO, exchanges ensures they know about the project they accept for IEO.