I never used Philips but ResMed Airsense 10 from the beginning. I thought it would be very uncomfortable, but found that I can sleep with it without any problem. I think this brand is more popular here in Canada. My setting for air is 12 with initial ramp.from 6. My humidifier setting is 7 at home with room temperature around 22°C (71°F). I find the humidifier setting needs adjustment depending on ambient temperature; it needs to be lowered if the temperature is lower (e.g., while camping). Otherwise water condenses in the tubing and the air gurgles waking me up. My hose is not heated. Also do not fill water to the brim.
It is important to adjust the straps at the beginning of each night, if leak is noticeable it will disturb my sleep. I use full mask F20 - with the partial one I couldn't even breathe, it choked me!