After having this for a month I finally got to use it this week. It worked better then i had expected. This week i made my Belgian style xmas ale and did my usual procedure. I chilled my wort to 85 and transferred to the primary. then i placed it in the swamp cooler with a 22 lb bag of ice and topped it off with water. With in minutes (around 4pm)it was in the low 70's so i pitched my yeast. When i got up the next morning (530 am) it was at 56 and still dropping so i pulled it out. when i got home in the afternoon it was at 64 and just starting to show signs of life so i left it out. two hours later it was going nuts so i put it back in and it held at 62 for two day before i had to yank it again so it could ramp up to the high 70's. I think i could larger in this thing.