I now have the Frankford Rotary. I used to have a vibratory cleaner that I used Lyman media in. I also once owned a Hornady Ultrasonic cleaner. I prefer the current Frankford, but a few things I noticed. Is easy enough to use, but I have most of the accessories to sort and recover the brass and the pins. I just lay out the pins on a cookie sheet to dry for a day or two - stir then up after 1/2 day or so to "mix". Do not try to clean pulled bullets and previously fired brass at same time - those bullets will find their way into the brass case, a few of those pins will follow and then they are stuck in there! When done properly, seems to clean inside and outside about perfectly. Not so sure that is really needed or not for any measurable performance - pretty much just "for the eyes", I think. My very earliest "cleaning" was to simply slosh about 50 or 100 cases in a bucket with warm water and dish soap; then back and forth in a big bath towel with white gas sloshed on to cut through the oil based sizing lube that I used at the time. About every third or fourth loading, I would scrape primer pockets with a pocket cleaning round brush from RCBS. When I would do that pocket cleaning, was a habit to look through and verify that the flash hole was still clear - no junk in there.
For new brass, and really clean looking rotary tumble brass, I dip into a mica powder brush thing, to get smidgeon of lube on inside of neck before sizing. I believe that the bit of carbon from un-tumbled brass does the same thing - easier to size, I think - do not hear any "squeaking".