I'm using EMET. It's a challenge to configure. I think I have experienced maybe 7 alerts in 2 years. All of them were Firefox, and I don't know what the issue was, whether it was an exploit of Firefox or a behavior of the program. It's great that you can add anything to EMET, but you will find that you can run into issues with Windows and some other processes when trying to configure them for full protection. This seems fairly standard that not all of the protections will work. Not sure why. I have configs you can import for some Windows programs and others if you want to try this. In Windows 7, nothing breaks with these settings.
MBAE free will protect the browser and MS Office. EMET is anything you choose to protect, including Windows processes. You just have to do the testing yourself to make sure that all the protections will work and the program too.