If you are just your regular phone user everyday, then the 23 is nice enough. I think it depends on what you like to do. I will say YouTube and watching things is nice on the Z and it is something different for sure. Pretty handy for what it is. I will have to say that one. I think you could like it.
Also the speaker is pretty nice on them. I will say the only thing I have heard off and on about it is the battery life. I think it still gets a average day out of it.
I have a family member who got one of the Z folds and he loves it.