Hi Ed! Welcome aboard!
Yes, cheese takes some time to "mellow" after smoking. I noticed you used apple wood...the first time I smoked cheese, I did too. I thought it was awful! Not sure why, but apple is one of those woods that you either love or hate. Some of the folks that tried my apple cheese loved it, but I hated it! I've come to realize that I just don't like the taste of apple smoke on anything.
Wood is like any other seasoning! The flavor profile of different woods is like a spice; you either like it or not. Hard to believe that smoke has such a profound effect on the flavor of our food, but it sure does! The more you smoke with different woods, the more you will realize that. Because our smokers are not mixing the smoke with the heat source (charcoal or wood), the flavor of the smoke is much more "true." Experiment with different woods, and see the difference!