Grin has a retarded inflation rate. How do you think its price will remain sustainable?
Total Coin Supply: infinite
While I am fond of Mimblewimble, whoever decided the coin specification decided to create a serious flaw.
Monero
Mimblewimble has privacy features, but it also has the first really impressive, true scaling solution in crypto. Privacy-wise, Monero is probably better overall, but its scaling is abysmal, and neither coin can be treated as an impenetrable black box.
This. Monero will end up a dead coin sooner because of all the bloat it implemented.