Pros
There aren't any worthwhile things to say about the company as a whole. You get a decent discount, however they are even slowly making that worse and worse as time goes on. I've personally been with the company for 4 years this August 09'. When I was originally hired the discount was nothing short of amazing. Parents could use it, siblings, your wife/husband, and your children, you could even get away with buying a "gift" for friends. Since then the discount has been limited to simply your significant other and your children. They tried changing the discount to make it even worse than it is now but pulled back when the employees of the company got into an uproar over the change. Which was that you were not allowed to get more than 50% off a single item, so stuff like Dynex, Rocketfish, Insignia, and Init all of Best Buy's brands that are usually around 70-90% off depending on what your buying would now cost employees a insane amount of money. The only other benefit is the ESPP (Employee Stock Purchase Program) which gives you a great price on buying Best Buy stock and the money is taken directly from your paycheck each pay period.
Cons
Best Buy doesn't care at all about there employees in the slightest form. All it cares about is making it's money. When you first get hired they talk up how much Best Buy cares about their employees, it is basically just a way of making you feel good about getting hired. Personally I have worked there for 4 years this August 09'. I am still a Part-Time Geek Squad Agent after being promised the world so many times I've finally came to the conclusion I am going no where in the company. I have been promised the Geek Squad Senior position twice by my Supervisor, and both times was told by the management that I was far to "incompetent" to do the job, to later been told both times that I needed to now train the person who actually got hired as senior so they would know how to do their new job properly. I have also been promised full-time three times. Once the one full-time agent spot available was given to a new hire with no certifications, no qualifications, and in the end he got fired because he had no idea what he was doing. The other two times they bought people into the department to free up labor from departments that didn't have it. One time it was someone from the Car-Fi department whose technical background consisted of knowing how to login to MySpace. The other was a employee of Digital Imaging, who didn't know the difference between a CPU and a Hard Drive.