Not knocking the HF tumbler but remember the Lyman Cyclone or the FART comes with pins, the HF does not so you need to add on the price of pins.
More money but the larger Cyclone or FART will do more cases at a time.
I like auto wash and wax and citric acid. (citric acid can be found in the canning section of the supermarket) People use Lemishine which has citric acid but cheaper just to by the citric acid.
As far as the wash and wax the brass gets whatever I am using for the car and the car generally gets whats on sale at the time.
(I have used Armour All, Formula 1, Turtle, and some others, all seem about the same, easy on the citric acid, generous with the wash and wax)
I have the Cyclone got it on sale forget the exact price. It came with two trays to separate the pins from the brass.
One with slots big enough to let the pins through, one with wire mesh to catch the pins and let the water through.
You will probably want to get a media transfer magnet to chase down pins that are attempting to escape, they try all the time.
Love the way my wet tumbled brass turns out.