I used both old and new Frankford Arsenal tumbler and media separator kits.
Good: The new kit has larger capacity (800 9mm) with clear plastic top so you can see the tumbling progress and has a convenient in-line on/off switch. The tumbler is quieter than the old one and works well.
Bad: Costs $52. New FA tumbler comes with short power cord (like 2.5 feet) and you have to use it near a power plug - not very convenient. The new kit's media separator is smaller than the old one and is "roundish" sized to fit inside the 3 gallon bucket it comes with. It has "wings" that clip unto the bucket lip to keep the media particle from flying all over the place, but really does not do a good job. You have to carefully turn the media separator slowly to keep most of the media inside the bucket wings. The older media separator was a larger unit that's similar to Cabelas's separator without the top lid and works well.
If you want just the tumbler, new FA tumbler from MidwayUSA is not bad. If you want a better tumbler and media separator, check out the Cabela's tumbler and rotary media separator -
http://www.cabelas.com/cabelas/en/t...=cabelas tumbler&cm_ite=netcon&rid=2146251080
Cabela's tumbler has even higher capacity (1000 9mm, 800 40S&W, 600 45ACP), larger quieter motor, longer power cord (5.5 feet) with in-line on/off switch and large plastic knob for clear top instead of a wing nut. Cabela's tumbler costs less at $49, so unless FA tumbler is on sale, it's a no brainer.
Cabela's rotary media separator ($29) fits on any 3 or 5 gallon bucket and comes with a top lid so no media particles fly out will hold 2000 9mm cases.
I highly recommend both.