I sure hope these turn out to be great tires since they are made in the USA. They have only been made a few months so there's not much actual user experience. Considering I just had a blowout on my Goodyear Marathon that damaged the fiver, I just couldn't pull the trigger on the Endurance until there is some actual history of good quality. That's why I have ordered the Sailun S637 G rated tire.
Maybe the Endurance will be my next set of tires, since I do prefer to buy American. Only time will tell. Good luck.