To be frank, I think that the NEM project has a very remarkable blockchain, which is very good at scalability and speed within the NEM network. I think that the NEM project has a very promising blockchain
NEM is not yet tested compared to Ethereum. Security is also an issue when Japan trading platform got hacked into their system. I am also watching NEM, but i need a proof that it is better than Ethereum in terms of real time speed for multiple smart contract on top of it.