Pros
You may have a store blessed with Culture for their Geek Squad precinct and truly know what it's like to have a satisfying work environment. You get to know your peers, and have a "best friend at work". I know I have several. There is opportunity for advancement, but you have to be willing to make the effort and go the extra mile. If you work hard and set goals with your leadership, they can help you. More often than not, people don't care and thus don't get things done.
Cons
Not every store is equal. You may unfortunately be stuck with a store that is rooted in older processes. As they say, it's the GM's box and they decide what happens. While I haven't experienced this personally, I can say that if you work with your immediate leadership to adjust the problem, then you will be okay. Its true, they have to look after numbers as it's how they're measured against. If you can present a proper business case as to why "x" process will result in more $$$, than they have no problem helping you out.