I think IEO is very good because it allows any crypto project to fundraise with directly through the cryptocurrency Exchange platform that many of its investors like Binance are already successfully running IEO and already many projects A successful one.
IEO is one of the new strategies for crowdfunding that are still not widely known for blockchain-based projects. If you want to join IEO choose a good project.
Not every IEO is successful. In fact, Binance just announced earlier that they will be removing the BTT/USD trading pair due to lack of popularity.
https://www.publish0x.com/cryptobeach/bttbtc-being-removed-binance-xpxjpz