Pros
They start their employees off at a higher wage than most other retail employers will. A lot of valuable time is actually spent on training new employees, something most retailers don't bother a lot with. For full-timers, they also give great benefits including, full medical, dental, optical, 401(k), stock options, and paid vacation and personal time. They also receive their own email accounts with the employee tool kit that allows all Best Buy employees everywhere to effectively communicate with each other. Best Buy also encourages all their employees to branch out into other departments of the store they're interested in.
Cons
The constant pressure on operations specialists (cashiers & customer service reps) to sell product replacement and service plans, and get customers to sign up for the Best Buy credit card and Reward Zone card. All aren't bad ideas, but the constant emphasis on convincing customers to get those things.