Either bike would work for you. Slightly different use case.
Eezz is smaller (also abit shorter seat to handlebar). It packs very small and easy to commute with and simply carry.
QIX rides as a bigger bike. Longer. More speeds. Normally you would roll it around while folded while the EEZZ you would carry).

Great bikes which unfortunately Dahon is discontinuing in the US market. Not smart, in my opinion, to close them out as they are. .