What is unique about RaiBlocks (NANO)?

Nano/RaiBlocks is unique not just because of its current speed and zero transaction fees is that it is infinitely scalable (limited only by internet speed).

Its advantage is that even though presently other low MCAP altcoins may have low transaction fees and fast speed too (considering their low volume atm); they will likely struggle once they have to handle the number of transactions that BTC and ETH does.

The architecture of Nano on the other overcomes this issue altogether (while coins like BCash and Litecoin merely delays the issue until a particular "LIMIT" is reached) -- Maintaining its transaction speed and zero fees even as more people starts using it.

Furthermore, coins with mining-reliance, IMO, are not environmentally sustainable in the far longer term, if it is to be eventually adopted by a large portion of the world population, etc.