I researched tires and wanted to get something decent and not pay a fortune for a 17 tire. A year and a half later, 15,000 miles, I was just told that I only have 4/32 of tread left on my tire. I've had them rotated regularly and had the alignment check and was told it wasn't out of line. The first time the tires were rotated (within the first 5,000 miles), I was told one of the tires was cupping. My car pulls to the right due to bad tires. Again, my alignment isn't off so it's the tires. I don't care if I spent $100/ea. on tires or $200/ea., I want to get my money's worth especially when I rotate them regularly and have the alignment checked. These are garbage tires. I won't buy Sumitomo again.