These guys proved to be honest. Les Schwab patched a tire with 2 nails in it, but two weeks later the warning light came back on. Schwab said the patch (plug) failed so they did it again but said it now has a liner leak. Two other tire places said they don't know what a liner leak even is. My tires have 70% tread still left so instead of buying 4 new tires I went hunting for a used tire of the same model with the same tread left - so it wouldn't be hard on the drivetrain. I called Tire Zone in Tualatin and they had the exact tire in the right condition for me. I went there ready to spend $100. He looked at the patch and said he should be able to re-patch it correctly. They had me there ready to spend $100 but the re-patch got me out of there for $35 and so far I have not had any problems. I must point out that these tires are not Schwab's brand and they did the patch work for free which I appreciate. Schwab is very close to my house, but this might just be my new go-to tire store. Proven integrity goes a long way. Thanks for taking good care of me!
