They're Chinese-made tires. IMHO, they're a crapshoot. My three concerns would be:
1) Quality - some reviews talk about out-of-round tires and difficulty balancing
2) Life - I read 64 reviews on Amazon for 31X10.50R15LT 109Q, and the longest mileage review was 6,000 miles. I'd be skeptical that these tires would last as long as the major brands. I get 50k+ miles out of my Duratracs, and that includes 10-20k miles towing at max tire loads.
3) Load - I'd also be very skeptical that they can handle maximum loads.
In my day job, I sell molded rubber products. I have suppliers both domestic and overseas. The parts from overseas get much more scrutiny in our QC department. We see lower grades of materials, excessive fillers (cheaper than the rubber), inconsistency and sometimes flat-out fraud.
If I had a beater work/farm truck that I use only for myself, I'd probably buy them. But for my family vehicle, towing a heavy trailer with my entire family inside, over thousands of miles in high heat, I want the best tire I can get, and I'm willing to pay for it.
