I don't like it. They claim to design a secure ledger today that will be secure from the future quantum-attacks. In security, there is no such thing as future-proof. You need to continuously asses your platform against technological advancements. Also, quantum-computing is not yet fully understood and the limits aren't explored. How can they define the limit of their coin resistance.

Quantum-computing shall exponentially increase the computational speed. A brute-force attack will be carried out in seconds rather than years. However, at what rate and to what extent that computational speed is still unknown. Based on this, they will either have to fork QRL multiple times to adapt to the expansion of quantum-attacks, or they will remain vulnerable until we find the limits of quantum-hardware at that time.

I'm not saying they are a scam. Please don't get me wrong. To make it simple... a non-QRL coin may be broken in a 1-second quantum-attack. A QRL coin may be broken in 1.5-second quantum attack. Nothing is for sure. Until we actually know the limits of quantum-attacks, we can't protect ourselves from it. I can claim to have a quantum-attack-resistant coin even if it can resist a quantum-attack for 0.0000001 seconds, but I'm not going to come out and say I have a quantum-attack-resistant coin that is vulnerable because that word is bad publicity for me.