Wes, the owner, was very helpful. I thought something was wrong with the engine or transmission and took the vehicle to him to get an opinion. He drove it around the block and narrowed it down to lesser issues. He got the car on a lift and quickly nailed down the problem - the bearings in one of my wheels were badly shot. The problem was swiftly fixed and I got a tune up at a great rate, too!
NOTE: I had the bearing replaced in another wheel weeks before going to Highline and the cost was 20% higher - Highline provided great honest service and saved me large $$! I highly recommend Highline Import Auto.