I have been on a ResMed BiPap machine, in several iterations, for at least ten years. The BiPap has higher pressure for inhaling, and lower pressure for exhaling, so you are not dealing with the high pressures constantly, which is the source of adjustment issues for new users. My understanding is that newer BiPaps are self titrating, adjusting pressure to bodily demand. My machine is a couple of years old, but the sleep specialist will set the pressure parameters based on your sleep study. My obstructive sleep apnea was severe, and the equipment gave me no problems of note. At worst, I had to get used to getting a full nights sleep. May it be so for you.