Pros: variety, great if you like interacting with people
Cons: very low pay, a lot of hours, can pull you to a different site whenever and you drive sometimes several hours to get there, management bullies employees, vacations are discouraged, many centers work tues - saturday, scary road tests with awful drivers, software systems that don't work properly.
Extremely busy position, some sites you must sit in a cramped position for your entire shift, there are no breaks and only 30 minutes lunch, take customers on road tests for vehicles and test cycle riders too in all kinds of weather. Some drivers and vehicles extremely unsafe.
Pay is very low. Management bullies employees. Hardest part of the job is the very long hours and some customers who are very difficult. The most enjoyable part of the job is learning the laws affecting the position and interacting with a lot of people.