Then, this was not the phone for you, now was it? I personally DO use most of the features and, in my case, they work quite nicely. Of course, I can also read the manuals and warnings instead of just clicking 'next' to every single prompt, so I know that Eye Tracking will not work in low-light conditions or when I'm wearing glasses with too much glare.
I would love more apps to take advantage of the Air Gestures than the current handful, but in those apps that do support it, I find them useful (to this day I still find myself absentmindedly trying to wave a page away in front of my iPad or trying to see a quick preview of Flipboard headlines by hovering over the screen).
Remote control I use the most, probably. I've set up all my rooms in the phone and now don't have to worry about finding the remote; it's always with me. The one feature I probably use the least, but I do use sometimes, is the dual camera, or as I like to call it, the "Forever Alone" mode.
Not every phone is for everyone but that doesn't mean that their features are meant to be turned off. I used to have a Note 2 and, ultimately, I found that the stylus wasn't for me, but some people now can't live without it. It's all about different tastes, and that's why I'm an Android fan. If I wanted the same for everyone and restricted to someone else's choices, I'd have gotten an iPhone.