So did I take it into use immediately? Well no. I had other things on my mind. So I sorted it on a Tuesday morning when I was working at home because I had a lecture at 11 or so. No use first biking to Menai Bridge! So I switched it on and let it sort itself via iCloud. And switched over the sim card. Almost sorted!
Everything worked! Except my work mail. I decided to ask our helpdesk. I popped to them after a lecture. They didn't know how to sort it either! But then I noticed I had two mail icons. The outlook one was refusing to play ball but I managed to make the other one work. Good enough! So now I have a phone that does what I want, and as I was already used to iPhones I found it totally intuitive to work this specimen. Success! And now I can take my apps off my old phone, plonk it full of music, and use it as a stereo thingy. Look at me, I'm with the times!