Zero is minable. It is using an alternate set of parameters of equihash algorithm that need at least 8GB of RAM.
Zero is ASIC resistant meaning that it can’t be mined with big ASIC miners making it unprofitable for big farms with ASIC capacity
Small inflation that degrades over time. There is a stable supply of 7200 zero per day. Every year the percentage will drop as per the total supply.
Zero is heavily undervalued because it was abandoned for many months. It has 1/10th to 1/1000th the valuation of similar but inferior cryptos
It is currently in only one Exchange. This will change very soon by being added to 2 or 3 Mid size Exchanges. Early 2018 we will go for a bigger exchange
Zero advantage for early adopters. There were no pre-mined zero therefore people that buy or mine today have no disadvantages