While, this sounds very cool and interesting, especially considering See full review

Bitcoin has suffered numerous transaction spam attacks whereby attackers flooded the network with small value transactions resulting in the Bitcoin network grinding to a halt. NEM has spam protection in built that kicks in when its blocks are full. The network detects these 'attackers' and makes transaction fees exponentially more expensive for these attackers in relation to the spam they produce while keeping other normal transactions with the normal fees.See full review

btc is probably the best cryptocurrency in its category See full review