2017 annual review of NEM/XEM progress:
https://youtu.be/XgN315dh4tI

Catapult test net is also active - changing core from Javascript to C++ for enhanced features/security. 4000+ tps. This thing is on fire.

Plus, they have had multisig directly on the chain for a year - no security weaknesses like Ethereum/Parity.
Store apostilles, namespaces, mosaics, etc. all in your nanowallet. Ready for integration with legacy systems.