I have Sailun and have been happy. I have had them for five years now, though they have had very little use in the last two years.
When I replace them next, I may get them from etrailer.com, as the have G rated tires already mounted on some nice looking rims, for a little less than $300 each.
Or I will upgrade to disc brakes and new tires.
TV: 2015 F-350 DRW, CC, 4x4, with 14k GVWR package, 98 gallon TransferFlow Aux Tank, Timbren Shocks
TH: 2014 Voltage 3950, Sailun S637 all around