One warning. If you use them for the AMCAS and then write the secondaries yourself, or just cut & paste the AMCAS essay into the secondary, the adcoms will be on to you in no time. When I see a poorly written secondary (or worse, "I have nothing to add, please read my AMCAS") along with a beautiful AMCAS essay I immediately wonder if the applicant has a ghostwriter. 😕
Don't get sucked in, raise the expectations of the adcom and then fail to deliver on the secondaries.