Pros
If you have a manager that is devoted to your success and building a team as well as a branch with a culture that breeds success, all you need is to be willing to work hard (12 hour days during week, come in on some weekends). Pays off in long run if you are so inclined to work hard. Provides superb opportunities for advancement if you are willing to work for it Above average compensation package
Cons
You're likely not going to make much money in your first 6 months unless you have a strong natural market (friends and family) so you need a support system or money to fall back on until your practice gets up and running. Be ready to suffer for 1-4 years before you have a self-sustaining practice. Management gears towards selling proprietary products although you are not required to