Thanks for posting this in depth user's review. I have been thinking about a Window's phone off and on for a couple of years - almost got one 2 years ago and went with a Z10 instead. I've loved my Z10 - and still do - but I've been feeling like it's time for a change.
I didn't like Windows 8 on a laptop - but I do like 8.1. I haven't read up much on Windows 10 yet - hopefully they don't break too much stuff (isn't that always the way at the start?)
Anyway - I was sold when I saw the blog review on Windows Central for the 830, but your post has solidified in my mind that I've made a good choice. I've got my order put in. Phone should, hopefully, be in in a couple of days.