For all the reasons above, I chose the thumler's and stainless route. 4 hours and it looks like you could put it in a box and give it to the wife for Valentine's day. Inside, primer pockets, outside, are all brilliantly shiny. 5 minutes to dump them, rinse, and spin in my separator...overnight to dry or 10 minutes with a hair dryer. I like pretty brass. I just got in 2500 once fired dirty 223 brass, and I'm having fun making 500-600 a night turn into brand new sparkling again.
Which Thumler's model did you buy? I've heard good things about them. From what I can tell, they were originally designed for rock tumbling, but with the stainless media, do a good job of getting cases looking brand new. Is there a maintenance process on the media itself? I mean, it has to get dirty at some point, or maybe all the grime it takes off the cases just turns into a dust that you can dump out and wipe away?