The great thing about working with a broker is, it's a one stop shop.  Rather than calling 7 or more insurance companies and discussing the plethora of advantage plans available to you (and over 30 supplements), you can have a one hour meeting with me or one of the agents my team and generally know which plan will fit you best. ...and it won't cost you a dime. I am paid by the insurance companies, so I don't need to charge my clients for my time or expertise. 

Also, I am paid a residual income each year that you stay my client.  In this way, I have an incentive to continue to do a great job for you.