NEM is currently facing setbacks which is common to almost all cryptocurrencies at the moment. With the growth NEM recorded in the last quarter of 2017 and given the level of input put in by the technical team of NEM, it will only take a while before NEM skyrockets again. Before the end of 2018 the XEM is likely to be worth over $2.
I have an opinion divided on Nem. I respect the fact that it solves some issues in real life, but this token isn't a deal-breaker to me.