I had built a Electrolysis tub that I outlined here:
http://www.bikeforums.net/showthread.php?t=520550
This is the first bike that I did a full clean up of with my little effort saver. Its not really a time saver as stuff has to soak for 1-2 hours BUT actually labor is maybe 15 minutes for a lager piece with just a little going over with a tooth brush to get the remaining Iron oxide off. We have been getting a bunch of rain and I managed to get the after shots between showers. My camera lens was fogging as was the Chrome on the bike so not as sharp as they could be.
As I pointed out in the other post this is really good for bare steel and chrome parts. You can get away with a short burst on Aluminum but some aluminum grades will get a black tint to it but it is easily removed with metal polish.
The spokes had some rust up where it when into the hub. I dunked the whole wheel to get that rust off then came back with the metal polish to get the tint off the aluminium. Just keep a VERY close eye on it and only let it soak long enough to get the job done.
The Aluminum brake handles I had no issue with so I dunked the complete bars with the bar tape on. I wanted to try to save the tape since it was in really good shape for its age and was the matching "Chestnut" color of the bike. I just came back at them with a light buff with a scotch bright pad and they cleaned up really nice.
I did the chain and derailleurs as well. They cleaned up fairly well.
As pointed out in the other post this is not good for paint so the frame was not cleaned with Electrolysis.