Thanks, everyone. Very helpful so far. I'm still wondering; are others using this machine finding it effective compared to other machines they've used?

Hi All, I've been using various CPAP machines since around 2003. I'm currently using the ResMed S9, and am finding that most days, I just don't feel rested. My compliance is generally good, and when I've gone in to the sleep doctor and they've looked at my data readouts, my AHI is pretty low. I love...