I normally maintain a healthy weight if I only eat from 12-8. If I really don't pay attention and graze that entire window, I can still creep up doing this. If I hit 175lbs, my rule is I cut my eating window from 1-7 until I reach 165 which happens in less than a month on the 6 hour window.
I've kept this up for 5-6 years. You get over the hunger pangs within a few weeks and then it just becomes normal. I've only had to cut my window down to six hours I think three times since I started the routine.
PS: I have had diagnosed ADHD since middle school. I wonder if there is any correlation between ADHD and intermittent fasting as a successful diet strategy. I think there is something similar between struggling with focus and a proclivity for absent minded snacking. It makes it so much easier to have a binary rule that I can follow that tells me when this is or isn't allowed.