I’m almost totally unfamiliar with CPAP, and the mask you linked looks like something I’d never want to be stuck wearing every night. Now, I wouldn’t let appearances drive my use of a medical device, and I’d use it if a doctor said I should, but I doubt people’s opinions are being driven by the exact type of mask they see.
I hated, hated wearing my CPAP, even with nasal pillows instead of a facemask. It makes me feel inadequate as a human. Worse than eyeglasses. And for the first half year or so, it was awful to wear; I'd reach the morning and find I'd ripped it off in disgust somewhere in the night and didn't even remember it.
But I willingly wear it every night, and a paltry 56% improvement or whatever it was won't tempt me in the least to give it up. Living without adequate oxygen and sleep is hell. I'm seriously convinced I have permanent brain damage from it. (Admittedly, that could just be age.)
My point is that this is not something you wear because your doctor says you should. You wear it because life is shit without it.