Productivity is a WP strength, it's a great time to seriously make an impact in this segment of the market.
Productivity is a Windows strength, not necessarily a WP one, which is a shame.
Even without llooking at Office and OneNote which admittedly will catch up the iOS versions when W10 is released, I'm disappointed with the calendar (no possibility to set timezone, one event at a time in the tile, no possibility to have a tasks tile), or email (no possibility to attach files when responding).
I agree: MS strength is Office and productivity. And they should elaborate on that, for instance by bringing the kind of dashboard that Outlook is (email calendar tasks contacts). Most of my colleagues don't understand why they can't find outlook on WP.
We have iphones at work so I can see the difference. And over all I prefer my 1020. But all this WP=productivity thing is a bit overrated if you think about it. It SHOULD be but it isn't.
I hope MS make that productivity department perfect with w10. That would be a key argument to switch corporate devices to WP.