We just tested these out and they work great! At first had a little trouble installing them, but found the washer on the old aerator was still stuck in the faucet. The bubble style is just like the aerator on most sinks, the spray style is just like a sprayer on a kitchen faucet. Our initial tendency was to run the faucet full blast, but that is not needed since these reduce water usage and the water comes out faster.
I can see how this would be great when your not at a full hookup site and need to conserve water. The faucet can be turned on & off very fast along with the water saving capabilities of the aerator.
One Touch Faucet Aerators