I have had an X since the day it shipped and the fact that its still a decent phone for daily use is a testament to how much of a leap it was at the time.
I wonder how far back customer satisfaction is for older models. I'm still rocking my trusty 8 Plus and it suits my everyday needs just fine and works perfectly, with a slightly degraded battery life. I'm not gaming or shooting movies with it and so haven't seen any need to upgrade for quite a long time.
In my household we still love and use the iPhone SE from 2016. The only issue we have with them is battery life. I replaced mine myself, and while it is better than what it had been, the battery still isn't as good as when it was new.
I was hoping to like the updates enough to justify the upgrade at this point, looks like I'll be waiting another year. If I upgrade any of the phones in my house it will be my partners, who will want a 12 because they can get one in purple. (Seriously Apple, why not may a 13 in purple, you'd get more money out of me that way)
I have had an X since the day it shipped and the fact that its still a decent phone for daily use is a testament to how much of a leap it was at the time.