If you do a search for Hankook on this forum you will get a lot of posts. Hankook has been making inroads into the U.S. market and has provided good products. Ford has been using Hankooks on F150 trucks for several years. The dealer who installed mine last week deals in tires for autos, light, medium, and heavy trucks, as well as RVs. They are a dealer for all Major brands of tires. Upon making my request for replacing my Goodyear GV670 they immediately suggested the Hankook AH11 versus the G670 unless I was determined to spend more money for the Goodyears and still not get a better tire.
Of course time will tell if I made the right choice, but taking into account what other Hankook owners have experienced I think it was a good choice.