My brother in law has them on a dump truck and they are just fine. But he gets new tires every two years due to wear. On a MH, most get new tires due to time. I'm one that always appreciates a bargain which is usually the reason to look at tires made by China or Korean. But when it comes to quality and safety, I'm still a little apprehensive.
By the way, I checked with Costco and they had Michelins for under $400 per tire. They can't mount them, but you should be able to find a place that will do it for $50-$60 per tire.