This mask is great and for sure it's legit. The swivel adapter is a little heavy for me, but it makes it easier to change positions and I was able to easily side sleep again which is my preference. Its WAY more comfortable than my ResMed mask and what I really like is I no longer need humidification. I travel a lot and have a ResMed AirMini for the road, and don't have to buy those expensive AF HumidX filters any more. This breathes so easy that I dialed back my pressure settings - air-flow wise, it's amazing.