I've used this dealer twice for minor service. First time I came in for a recall check and the second time for tire mount and balance.
I find the service department quite well run. Cynthia at service desk is very friendly and professional. They are accommodating for waiting customers.
They offer free bottled water/coffee/tea/hot chocolate but no pastries which is a slight disappointment. There is free WiFi however.
Their rate for 4 tire mount/balance was exactly as at my local GM dealer at $112 tax in.
Overall been happy with my experiences.