I tested my kiln this weekend. Granted, I mostly refired items I had already fired, but it was really easy to program and when it was heating up I sat there working on other things with a bunch of rings, earrings and a pendant in the kiln. Such a nice feeling.
A ceramic tile/shelf came with the kiln, and since I had no sensitive items I put everything directly on the shelf and fired at 800C for 30 minutes. All of the metal clay I had in the kiln was PMC3, which fires at relatively low temperatures.
This is what the items looked like after they came out of the kiln:
And after an hour or so in the tumbler: