ZRX is a good buy right now, in general many altcoins would be a good buy right now especially after 2018. The thing is that at the moment all the attention or at least most of it is in BTC, because we'll have some big players entering the field and offering BTC futures which will attract many institutional investors and that will drive up prices. What people forget though is that after BTC, the investors will be looking at new ways to make better gains (BTC's return have been great, but there are still coins that outperform it short-term) and these investors will be looking for alternatives. I think ZRX is a good enough coin to attract attention and be involved into investment or hedge fund portfolios, the underlying exchange model is quite advanced of ZRX and that will definitely reflect price-wise at some point.