I don't like the salt because it does a lot of damage to vehicle metal. I'd rather see them use sand. Here in NY I see they have started using a liquid brine spraying truck on state roads. I don't know if that will be any better. Salt is salt whether liquid or solid.
I have heard that the state of PA uses only sand and no salt. Salt does have its merits of melting snow and ice.
You can easily see the difference in a vehicle driven for 20 winters in NY compared to one driven 20 winters say in FL.
We have a huge parking lot at work. It is commercially plowed each snowfall, then the maintenance guys go out and salt the lot to prevent freezing (which hopefully prevents slips and falls and lawsuits). They won't use sand because it clogs the storm drains in the lot.