I still have my vibratory tumbler but it doesn't do a large enough load & doesn't do it fast enough as my home made wet tumbler. I still use it for small loads just to polish.
My wet tumbler is very easy to use, I just put dirty brass in, this 2' PVC tube.(about1500 9mm cases)
Add water up to mark, warm water does a little better but cold will work.
Add small amount of Dawn (about 1/8" in container)
Add small amount of Lemi-shine
And clean brass comes out 2hrs later.
(most of the insides of the cases come clean without pins)
If I add pins they would be real clean, but I don't like cleaning up the pins.
And this is clean enough for me.