I have a highly modified 335 that has had some hiccups in the last year. I'm coming up on 100k miles so things are starting to show wear. They have done charge pipe replacement, diagnosed backfiring issues and even swapped out an engine when my oil pump died last year and I threw a rod. Last night my water pump crapped out and I was getting replies from Bret after 7pm. Customer service is amazing. I towed it from a dealership this morning in Murfreesboro so they were the ones working on it. I talk the shop up as often as I can to car buddies, forums, and FB pages. They will be the only techs touching my car no matter where I have to tow it from. Between customer service, fair pricing and not feeling like I'm being raked over the coals for extra charges, they keep my business.