The unit itself seems to be working great. Camera takes really great photos. About the tiles also can select all beautiful. Unfortunately, however, no mention that CalDAV and CardDAV not for example private servers (Synology etc.) can be adjusted !!! This can be connect / set only with the Google Account or directly from Microsoft. I am very disappointed. Especially as the calendar app is beautifully done. The calendar apps in the store (Windows Phone) make the part better, but unfortunately you can with these apps "read only". So not schedule appointments or delete, but can only show.
Conclusion: Who has no problem to store its data (contacts, calendar etc.) with MS or Google certainly has fun with it. However, if you, like me, its data have home / want to save because it gets difficult to impossible. Guilt is mE but not NOKIA, but Microsoft.