Well there was some bumpy roads initially, so the progress got delayed a little bit, but by the looks of it, I feel that 2018 will be a great year. Their roadmap is undeniably well planned, and by the looks of it, the userbase is growing.
I think by the rules of the network effect ,we only need about 5% userbase to reach critical treshold before it can go viral.
For Bitcoin this was about 10-20 million users, for Synereo it might be less since it's riding on the cryptowave.
And It's barely only 1$, the price could massively increase a lot more.