Nothing like fresh juice on a 306 or 510. I keep a couple of Provari's set up at home. But a feeder makes more sense for work since I drive a van about 10 hours a day.
Already planning the purchase of 3 and 4. Today makes 10 months off the cigarettes and I'm looking forward to a silver vein and a copper vein for my 1 year.
I like to be able to switch flavors several times a day and having multiple setups seems to be the easiest way to do that.