Congrats!
I recently picked up an Olympus Pen D, with which I've shot a roll of Fujichrome; the results were dead-on, exposure wise, and the focus looks just fine. I was surprised that the selenium cell worked, given the reports of problems with older ones. Or perhaps the error in the meter is offset by error in the shutter. This is a fine little camera.
When I had the slide film processed I had it kept intact, as a film strip. That's because I have an old film strip projector, acquired from a local school auction. It's really neat being able to project these film strips from the Pen D up onto the wall. Now, I'll have to start making audio tapes with the "beep" tone, to automatically advance the filmstrip.
One problem I noticed with the Pen D is that the black foam that seals the camera bottom against the upper body is starting to shred. I gently opened it up and tapped it onto a white sheet of paper, with the result of numerous little black specks of foam falling out of the camera. I did have several frames with a slight light fog along one edge. So you may want to check the light seals in your camera, as well. I'll have to get mine replaced.
Have fun!