Is there any real benefit in going from an S9 to an AirSense cpap machine?

Thank you for the advice. I will have to stick to the S9 until the AirSense goes on sale. In the meantime I am happy I found ResMed's dishwasher safe humidifier chamber on Amazon.

Hello everyone, I am new to the forum. I have been using the ResMed S9 machine for a year now and a few months ago I switch my humidifier chamber tub to the ResMed H5i dishwasher safe humidifier chamber tub. I found it randomly on Amazon at http://www.amazon.com/Dishwasher-Safe-Cleanable-Water-Chamb...

Does anyone know if the sizing of full face AirFits is the same as the Quattro? It would be convenient to know that S, M, L are the same if you want to try the other line. there are sizing guides on the resmed site, you can compare them if nobody answers. I have looked everywhere for the 1:1 sizing...