Hearing all the lauding of these cleaners, I went to Harbor Freight and got a small one. It has a 3-minute timer and will hold about 20 30-06 or 50 38 special (usually a little more of each). I have to hit the "ON" botton every 3 minutes, and I do it for about 6 or 7 times before taking brass out. This equates to about 20 minutes or so. Then I rinse them in the little colander it comes with, and blow each one out with a blast of air. Then on to drying in a case holder. This little cleaner is nowhere near as nice as a Lyman or other commercial one, but I got it just to see if it was praise worthy.
Here's what I use, and it works fine: water and a couple of squirts of lemon or lime juice (from those squeezable plastic containers). Primer pockets are clean, inside of cases are clean, and outside is more than acceptable, although not quite as shiny as tumbling in fresh media.
The down side is you're dealing with liquids (water). SO there's rinsing, drying time, and all that stuff. I don;t use the oven, but whatever method you use is a "process". Upside is no noise, no dust. You can ultasonic clean brass in any room of your house if you wanted. Also, you can clean any mettalic part in an ultrasonic cleaner.
If I upgrade, I will get a larger unit with no auto shutoff (unless it's 30 minutes or more).
Decades ago, my wife worked at a jewelry supply store and my best friend was one of their backroom jewelsmiths. Those guys always have something being cleaned in the ultrasound. I was completely aware of it being "on" all the time, but never even once equated it's use with anything other than jewelry.