All well and good but you have to make a radical change in equipment because a conventional vibratory tumbler and stainless media wont work, especially with detergent added to the water (imagine a hot tub with dish soap added....foamy all over).
To run stainless media you have to use a rotary tumbler....and they ain't cheap.
I do it both ways depending on how dirty the brass is and what mood I'm in. Running stainless media is time consuming and involved because you have to load the tumbler, add water, add Lemishine and detergent, seal it up, tumble, dump the drum in a bucket so as not to loose the pins (in my case minature stainless steel balls) down the drain, scruffle the brass around to dislodge the stainless, get the brass out of the bucket, then rinse it and dry it whereas if you dry tumble, it's tumble, seperate the media (optionally rinse and dry) or jujst clean the flash holes of stray cob and reload. Like I said, depends on my mood.
I have taken normally tumbled (in cob) brass in the past and rinsed them in tap water to remove any dust inside and then dry them courtesy of my wife's dehydrator. I can get several hundred 308 cartridges in the dehydrator and it takes about a half hour to dry.
STM is nice but time consuming and patently messy. Good to have options.
Personally, I don't think that STM is the answer all to brass cleaning.