I've had my iPhone since Friday, and it didn't take that much time to get used to not having a home button anymore. The first day I would occasionally try to press the bottom part of the screen, like it's the home button. But I got used to it now and actually find it a way more satisfying feeling compared to the home button.
At first I was a bit afraid the app switcher gesture was gonna be a heck of an annoying one, but it turns out it isn't. A lot people were making too much fuss on a gesture that makes quite some sense and is really easy to use (swipe up, swipe right and BAM, there it is).
I also saw this video of Unbox Therapy yesterday with his thoughts on the iPhone X. He argued about the swipe up gesture on the lock screen after having unlocked the phone. I just raise or tap to wake, swipe up immediately and BAM, I'm on my home screen. Strange that some people don't seem to know about it.
All the gestures make the device as a whole feel more fluid than ever before. Like you're in control of the navigation more, as it could previously take a split second for the home button to execute a command.
So, good job Apple! 😀