We have one on our new pool and didn't on the old pool. Not sure from a money savings aspect but I do like the fact that you can have different speeds for different functions...like the cleaner runs at close to max speed, which is louder, while when the water feature is on, it runs about about 30% of maximum and is much much quieter, you can barely near the pump. At on old house we had, it was a single speed and the pump was so loud it would basically overpower the sound of the waterfall.