December will be 4 years on my Hankooks.
No sidewall spider cracks on any of the tires. They were uncovered for one year while full-timing. Now I use tire covers for longer stays.
Very little pressure lost over those four years.
They ride just as good as the Michelin's that were originally on the MH. I could and can not tell the difference in the ride.
The Michelin's showed sidewall cracking the first year. They were a nice riding tire, but I replaced them at the 4 1/2 year mark due to the worsening sidewall cracks. Tire Tech advised replacement due to the extensive cracking. As I was on the way to Big Bend, I replaced them.
My next tires will most likely be Hankooks. They are OEM on the auto.
OBTW: The max psi is 110, I run them at 100 psi