So I've set mine up and restored from backup.
This thing is beautiful! I use all my phones without cases (I have AppleCare+) so I can really appreciate it.
My initial impressions:
Home button - felt weird the first couple of times, but I much prefer it now.
Speakers - wow, these things are loud and clear!
Camera - Haven't had much of a chance to test it out yet, but I am going on a walk with my partner tomorrow towards Basingstoke way, so will test the camera out then.
Will update further when I've had more use out of it. Let's just say, I love this thing!!!
I've also decided that I am going to keep the 256GB.
To everyone still waiting, hang in there. It's worth it!
Yes the Home Button takes some getting used to at first but it's insanely fast isn't it?
Not speaking too soon but it seems to read my finger prints much better than my old 6s Plus.