Like any discussion , over a few beers, of Ford vs. Chevy.
Any one who has had tire problems will say , " That brand is junk"
People who are happy with the purchase price, and had good luck on the road , with any brand , will sing it's praises.
You , were happy with the brand you had on your last coach, but didn't get any long term experience with them, so you only have 1/2 the answer, to your question.
Will you get 5>7>10 years out of the tires, if you keep the coach ?
Can the tire store put you in touch with anyone who has had those tires for that length of time ?
Sorry no answers , only more questions.
Personally, my coach has 9 year old Michelins on the drive axle , still look great, replace with the same next year. Steer axle I've got 5 years left.