I've had an AirSense for a little while and it has worked well for me. But I'm traveling a lot and thought I'd get the AirMini for that purpose. I was a little concerned because it doesn't have all of the features of my AirSense. But, in the end it works really well. I'm happier than I thought I'd be. I guess that having 2 fairly expensive CPAP machines is more than I need. If I knew then, what I know now, I might only have purchased the AirMini because it fits my traveling lifestyle and works pretty well at home.