The machine itself and the power cord are great. The small size is wonderful for packing. I gave up a long time ago carrying my cpap in a separate bag as I got heat from gate agents AND passengers about having a third bag. Finally have a machine that does take up as much room in my carry-on. My only disappointment is the mask. I choose the nasal pillow. What I don't understand is why ResMed changed the structure of the headgear from what I have for my other machine. This travel nasal pillow has a terrible head strap. It keeps slipping off my head, so I either got lots of leaks or if I pulled it tighter, the hard, ridged bottom of the nasal pillow dug into my face which kept me awake. I don't understand why they couldn't use the same design as the other nasal pillow & headgear I own.