Technically speaking, ZERO is quite a promising project. But we should keep in mind that it's not about which attractive features a blockchain network provides. Instead, it's all about how actively developed and adopted a cryptocurrency is for it to become a widespread success. Not every cheap coin is meant to be a good long-term investment. You should do your own research about the project's team, what's backing it, and how actively developed and maintained it is. Only then you can decide whenever to buy and "hodl" long term or simply look for another alternative. There's strong competition on the crypto/Blockchain space, so it's hard to tell whenever ZERO will become a success or a failed experiment in the future. I'd stick with the good-old coins (mainly Bitcoin, Ethereum, and Litecoin) just to be safe. Just my opinion