Works great, helps drop my temps pretty quick here in Florida. Better than my counterflow, I may pipe my counterflow to prechill the cooling water that I recycle in the summer months.
For a 60 plate, I was expecting more from it. You need two pumps and the water needs to be iced. The pump for the wort should be a pump specifically for wort and able to push quickly through exchanger to cycle quicker.
This thing worked way better than I expected. I have been using coiled copper for years and haven't been able to afford the glycol chillers. I will be using this for a long time.