Just got mine yesterday, coming from Pixel 2XL. My first impressions were not good, it looked and felt so small compared to my 2XL that I felt like I had downgraded. Also took a while to fix some glitches, like I use Nova Launcher and Pixel kept going back to the Pixel Launcher after I opened an app. (I have the fix if anyone needs it.)
It also seemed too responsive at times, like just moving the phone a little bit would bring down the notification shade. But after playing around with some settings, I'm getting more used to it now. Haven't had much chance to check out the camera/video but it looks great, and looking forward to the Wait on Hold thing next time I call my health insurance company.
I adjusted the font size so the screen size is pretty much the same as my 2XL, so it's just a matter of getting used to the smaller physical size. Today I put my Totallee case on it and that has bulked it up enough that I'm now leaning towards keeping it. If I change my mind I'll probably just go back to the 2XL and shop around between the Pixel 4A and the Galaxy S20, I have a few days to decide so I'll see how it goes.