Absolutely worth it. I upgraded after I read Denny talk about it on some website. I can get to around 7° above ground water in Under 10 minutes. The key is to have a normal size garden hose going to and from it and turning on the water full blast. If it’s winter, nothing additional is needed. If it’s summer or you have hot ground water like I do here in Southern California that will get you to 75 or 80°. Then to get to pitching temperature or lager temperature, I bought a 1/4 hp submersible pump. I put 12 pounds of ice in 10 gallons of water and run that quickly through the chiller at the very end and it will drop it to pitching temperature very easily. Whole chilling process in about 10 minutes. ( helps a great deal if you can whirlpool while chilling of course). No more double chiller set up like I used to. Very solid and well made too.