I just got a used one, I have the harbor freight double tumbler which works good but does not hold a lot. I wanted something bigger.
I ran a bunch of quarters in the harbor freight, took several days. Washing, rinsing & drying is a PIA.
But when I went to put them into the coin machine at the bank it kept jamming.
I put them all into the vibratory tumbler with ceramic & stainless shot they came out clean but not too shiny. This was about 1 hour and did not require any water or rinsing which was great.
Ran them through the coin machine and all but a couple bent or foreign coins made it.
~1800 quarters or ~$460
I am going to run to my dimes & nickels from scratch in using the vibe. Its a mix of 60% beach & 40% dirt. They all had just the inital washoff after being found. I'll post how it goes with pictures.
Just need to get them through the machine, not a beauty contest.