Great Place to Start. Must be willing to relocate to move up.
Pros
Great environment to learn and grow as a professional. You're surrounded by newer people who are also just beginning their careers. Lots of opportunity to move across the country if you're successful. Also, you can make pretty good money if you perform well. Personally, as a higher performer, I made around $80k/year my first 2 years and there were others who made over $100k. This is not a smile and dial job. You really do nurture relationships and build your customer base. You get leads every week from people who already have some interest. While certainly you have to spend some time on the phone, it is not cold-calling through lists.
Cons
Can be a bit of a trial by fire in your first few months but almost everyone hired on gets through that. You will probably get bored with the job after about 1+ year. The most effective way to move up is to move to a Field Sales role which always means moving to a new part of the country. Sometimes there can be a bit of nagging on the KPI's instead of a simple emphasis on sales. The company as a whole is very numbers-based so if you don't meet productivity numbers, it's a black mark on you. I must stress that it's very doable to meet your numbers, but can push you a bit depending on the day.