I have a few different chillers and I can say without a doubt this one is the best quality of them all. I am using two 1 HP chillers on a salt water pond. The pond is 2,500g and between the 2 chillers, keeps the temperature at 73. It should be noted the pond is in a greenhouse which adds to the temperature challenges. I was using one EcoPlus 1 HP with another 1HP chiller of a different brand before. The EcoPlus was pretty consistent keeping the temp at 73/74 but the other 1HP chiller would sit at 77 and would take much longer to get down to 73/74. With both chillers being EcoPlus, I no longer have that problem. I am also using less energy to keep my pond at 73 which adds to the value for the dollar.