ETH is good coin and as we know there are many other platforms like Eth and if i am not wrong it was done same time with nxt but thanks to good promotion it becames best for ICO.
the technology carried by ethereum is indeed very good. there have been many projects that utilize ethereum networks. for now, ethereum is still the best with a lot of support from the altcoin community, but now there are many other platforms that are starting to develop like neo and eos which I think have a good future too.
What didn't work out for eth was that too many bogus icos were in it's platform in the past 2 years from 2015 to 2017. It suffered the backlash last year when it started the downward spiral back to the sub 100usd levels. I'm sure given it's still large following, ether will recover but probably not as strong as it's supporters would hope for.