I thought there was no way I’d notice the higher refresh rate on the iPhone 13 Pro. I don’t notice it at all on my iPad Pro, so I really didn’t think it’s a big deal. But it’s quite noticeable on the smaller screen. I think I like it, but I absolutely can understand why some people will turn this off. There’s a bit of an uncanny valley effect, not unlike high frame rate video.
Do I think this is worth buying a phone for? No. Do I think I’d notice it after a couple of days? Probably not. I bet I could switch back to a phone without the higher refresh rate and not notice it. But the difference is real, noticeable, and nice.