Just an FYI the America Professor study packages appear to only be available for 45 days once you purchase. Something to keep in mind.
I would also like to say that today I've tried purchasing the Video Study Package through ExamFX and after using 3 different credit cards, each one was refused and I was given a message to "contact my financial institution", even though I was able to successfully make a different purchase for $500 (a much larger amount) with another organization, with one of these same cards after ExamFX's system refused it.
Something is wrong on their end for processing transactions. So far have been on hold for 20 minutes waiting to talk to someone.