Pros
Pay is great for somebody early in their career or right out of college. If this is your first real sales job, you'll learn some valuable sales concepts. The Gartner name, and experience selling to executives looks good on the resume.
Cons
The culture is falling apart in SMB. It's basically a frat house. Everyone is straight out of college. New Account Managers are hired en mass and pushed through huge training classes to keep up with the turnover. Management has the attitude that everyone is replaceable, so if you're not doing well, expect to be put on plan and pushed out, instead of coached. The market for SMB is not growing as fast as they will tell you. The value prop is VERY weak for tech vendors, despite what they'll tell you. Territories are shrinking, and quotas are rising. Worst of all, it's in Fort Myers, FL. God's waiting room. If you're under 65, you will be incredibly bored in this area within a few months.