Pros
They have good training and lots of opportunities to move up. I started in an entry level position (I had lots of industry experience) and was able to advance. They are backed by an equity firm so they have plenty of money. I have been given freedom to work independently. I have been very well compensated too.
Cons
Intense pressure to meet sales goals (but hey, it's a sales job, right?). They won't hesitate to lay off people if sales drop or something's not working out. Each location manager given pretty fair amount of autonomy to run their location which means there can be differences between locations--your experience will depend a lot on your manager. Company has gotten so big that its often hard to know who to contact for help with problems and sometimes people you ask for help ignore you. Inventory management system can be a little hard--requires a lot of oversight. If you're not in a sales position you might not be paid as well. If you're not connected to the core business, greater chance of lay off.