I began using a CPAP in 1993 after years of my wife complaining about snoring.
The technology has changed dramatically for the better. The old machine had a pressure setting and that was it. Now there are machines that watch your pressure, self-adjust based on your breathing patterns, save data to an SD card that can be uploaded to your PC and tracked by your physician. Phenomenal improvement.
The same for the facial gear. I still use a full facial mask because I am used to it but as others have pointed out, the nasal pillows are a lot less intrusive.
One consideration is whether you need a humidifier element. Some people find that the airflow from the CPAP dries out the membranes in your nose, mouth and throat. I have never had that problem and in fact have found that the machine will sometimes clear up the stuffy noses that I tend to get in the winter.
The machines are so compact now. I used to travel on business every month and I bought a compact unit, not paid by insurance, to take with me. Made it easier to sleep in those unfamiliar hotel rooms. It was especially useful on trips to Europe and helped avoid some of the effects of the time change because I slept and did not wake up 200 times a night as I had before I bought the machine.
You will get used to it. You will see and feel an immediate difference, no more yawning in the afternoon, no sleeping through meetings and no complaining bed-partners.
SRM