I have a Thumblers rotary tumbler for 2 reasons:
1.) I do all my reloading indoors in an area that doubles as a living space/workshop. A vibratory tumbler will kick up way too much dust vs. a sealed tumbler cylinder that is sealed water tight.
2.) I can choose whether to dry tumble with corncob or walnut and have the added option of wet tumble with or without stainless media.
Just like reloading presses, cleaning your brass is a matter of personal preference, circumstance, and budget.
Any way you go, I recommend that you stay away from advice to skip brass cleaning altogether, the number one reason to clean it is to protect your reloading dies, second to that is that clean brass is easier to inspect for cracks and signs of impending failure.