I've wanted a Rissler mixer for a long time, but I was afraid it would be a lot of money spent with little return. But last year (2012) with a bad drought and feed prices going through the roof, I figured if I could gain efficiency, this might be the time to buy one; turned out I was right: with 1 less cow than the year before, I was shipping 300-400 lbs more milk per shipment for most of the year!