It gave me plenty of trouble during the development/debugging phase, but that was just from the complexity and mistakes on my part. It's running rock solid, and signals look nice and clean on the logic analyzer.
As for mechanical stability, well, it just sits on my desk, so there are no problems. I'd be concerned with moving it much more than across the room though.
I'm not currently planning on making any "regular" schematics since this is a hobby, and that wouldn't be much fun for me. If there were a lot of interest I might be persuaded to do it.
Thanks for the interest!