I happen to get better vapor production from my air and prefer the glass air path it provides. Also feel less flower goes allot longer in my air during a session. Taste is nice on both , cfx works great through water tools. I like it better in that respect compared to my air plus the quick heat up time but I wouldn't consider it a upgrade to the air , I consider it more as another option with a similar price point. Now if you wanna upgrade from the air , you cannot go wrong with the mighty by storz and Bickel , it's a beast and provides me rips almost comparable to my desktops. You can't go wrong with the cfx though , the customer service is great , the people that work there are cool , the vape itself is nice at the price point with the fancy LCD screen , quick heat up , easy interface and great taste it provides , plus vibration feedback but coming from the air don't expect a huge jump imo .