Ethereum is for sure one of those alts that you can not be wrong investing in . Ethereum have a huge step waiting in the near future which is moving to POS and I believe that we might see this sooner than expected specially with the new miners coming out soon from bitmain , I think Ethereum will move to POS by then or in worst cases by the end of this year , When Ethereum moves to POS there will be no limit to the next ATH of Ethereum only sky is its limit .