I have had a CPAP for a few years and still experiment with different masks. Nothing is perfect for me but I deal with it. Better than feeling like garbage. The biggest issue for me was the adjusting the pressures. I wish the doctors would have showed me how to adjust the machine. My stomach would get pressurized every night but the #s looked good on their end. I sleep even better now that I can "tune" my CPAP with a simple search on the google machine.