Pros
I'm not really sure what the pros are of Synoptek. You can sometimes have a certain amount of liberty in what you do, I guess, and you're forced to learn new things because of a lack of staffing, competence, and a need to accomplish your job, but this isn't really a positive. Some of my coworkers in specific departments and jobs there seemed to be comparatively happy with their pay, but most found it severely lacking.
Cons
First, Synoptek doesn't pay. They pay "market" rates for your local cost of living, if you mean the bottom of the shelf pay for your arbitrarily decided title in your region, but it's not actually cost of living. I hope you like room mates. Second, their concept of career opportunity comes from picking up the jobs and responsibilities of your coworkers who are overworked and buried, or have left the company, or are just lazy/incompetent. Most of us who were any good have already left. The rest are in the process. Third, they don't always advise their clients of what's best for their situation or system, and they don't do a very good job of learning their systems. You end up with unneccessary accessories and services that look and sound good, but don't do anything to improve service.