Moving from an Apple iPhone "back" towards a Windows phone was for me a giant leap of faith. I used to have old windows phones before the days of iPhone and Android. My old experience with the historic menu driven Windows phones were traumatic to say the least. I am both surprised and happy to say that the leap of faith was worth it and my Windows experience has finally rivalled the last three incarnations of iPhone (3, 4S and 5S respectively) that I had been using. It is as if the best of iPhone and Android have been blended together to provide a superior experience.
Yes, a truly superlative experience. I had bought the MS Office 365 subscription and installed Office on the iPhone and I was happy with that until I tried Nokia Lumia 1520 and now I do not want to go back to iPhone because the iPhone 5s screen looks and feels tiny and almost trivial.
My wife uses a Galaxy Note 2 and when she tried the Nokia Lumia 1520 she feels that the Note 2 screen is too small!! So you see there is a real joy in larger screens on your phone.
I even feel that phones can go as large as a 65mm screen (this has a 60mm diagonal) perhaps even 7cm (70mm) may not be too large for the pocket as long as the bezel (edge around the screen) is slim.
Stunning phone. Beautiful interface. Pleasure to use. Superb camera clarity. Integrates with Gmail, Yahoo, xBox, Windows Desktop, Office (Word, Excel), Outlook, fantastic SkyDrive (which was the decider for me). 5 Stars and highly recommended.
UPDATE: 5/02/2014 - I still find this superior to Samsung Note 3 which my wife got this week. The Android has advantages like the Paypal Here app for chip and pin card which is not yet available for Windows phones. However, if it was not for that, my wife revealed that she would have chosen the largest windows phablet as well. The picture quality on Samsung Note-3 is strikingly poor! In comparison, the 1520 is very close to an SLR!!