I upgraded to iOS8 on my iPhone5s. I have Outlook for work, my emails are working just fine....no interruption. However, my Outlook/exchange calendar isn't syncing. It will show recurring appointments that I've had for a while, but it won't show any appointments/meetings that I created/was invited to since I've upgraded to iOS8. I have several co-workers who are having the same issue.
It's a HUGE problem. I'm tired of "double booking" myself, just so I can see an appointment on my iPhone.