Having read these postings, I have to say it is very refreshing to see how polite and constructive you guys are. Let's just say it isn't the same on sister forums...
Having said that, I am not an IPhone user, but I do support them in the workplace from a Security perspective. I myself carry 2 phones, both Blackberry but that is by choice - I can have any phone I want for work, just went with the PRIV.
From a support perspective, I see how Apple is WAY ahead of other vendors regarding phone/HW replacement. I really don't care for the lack of the option to delay an OS update to see if the bugs are worked out, but our users seem to be fine with it until their device goes off the rails.
The other issue I have seen a tremendous amount is both battery (well known) but more significantly, the issue with IOS and Exchange and O365. The native email client on IOS is filled with bugs as in duplicate calendar entries, multiple calendar invites etc.
Again, the device choice is up to you (and just to state, I don't have a dog in this fight) and I am "patiently" waiting for the KEYOne to be available in the states as I am supposed to get a demo unit to beat on, but my understanding from people who already have the KEYOne is that the major pluses are the Battery life, it is running "N" and of course the keyboard.
Best of luck in whatever you decide, but please keep us informed!