I played with my phone for a day.
I'm happy with it but all is not so good:
I find the camera a little capricious... the user experience is not top: changing the modes and don't have the same option everywhere and the quality are not the same (even in colors). U need to learn to have the right option for the right moment: not really easy. I love the pictures dynamic though, less the time the s23u need to treat some photos...
For the rest: all is fluid, i'ts cool.
The screen is gorgeous, the phone is quick, the sound is better, etc.
For the battery live... it's the same than before (s21+), but it's the beginning (so it need to calibrate and update will change that).
What I don't like now: it's heavy, big and not so easy to manipulate... really coming from s21+ doesnt help.