Professional crew, on time and on target. All you can ask for in a dealership. However, I'm very disappointed in my 2018 Silverado (recently purchased - less than 10K miles). The park assist alarm is simply ear piercing. In particular when hands free is being used for phone. It is disturbing it's so loud. No one can find a way to turn it down. I understand it is a safety feature - but it is out of control and no one seems to know how to address it. C'mon GM. Every feature on that machine can be adjusted.