IMO loading a ultrasonic cleaner with brass is a PITA. Properly done they must stand up with primer pocket down. (L&R instructions).

My system is to wash them first in hot water and laundry soap, gets the bullet lube and dirt off.
I wait until the wife is away for a while and use the washer. For most handgun brass this is enough.

If you want more the Ultrasonic then will improve the cleanliness and the solution stays cleaner after the washer. They will not be shiny.

I personally think a hot wash and an hour in crushed walnut shells does all I want on handgun brass.

I bought some of the SS media, I use it on rifle brass, it does an absolutely super job.
You tumble in a rotary rock polisher; the pins are tiny and clean everywhere.
However, separating the pins, soapy water, and the brass is not a walk in the park, IMO its overkill for straight wall brass.

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