Went past here yesterday again and took an hour long soak, after visiting quite a number of natural hot pools this is my favourite.
Pros: The hot water upstream mixes perfectly with the cool water from the river so you can constantly adjust to your desired temperature. The flow of the river is great as it takes so much of the silt and algae away.
Cons: Sadly there is often rubbish left here and we had to clear 10 bottles when we left. Not too private due to bridge overlooking. Rotorua District Council were there moving some rocks upstream as someone had burnt their feet so recommend not entering via the steps on the North side of the bridge for safety.