Hardware:
The hardware is top. The display and the Toachscreen are top. The installed GPS sensor is also spitze.Die processing is also great. The only problem has the unit with the brightness sensor. Unfortunately, this may gather dust and that leads to a black screen when the input and output of Telefonaten.Dieses problem have been resolved with an update. The mobile phone still dusty, but no longer causes the software problem.
Software:
I had an Android device. I was pleased with the Android operating system. The switch to Windows Phone 8 was intuitive. In my opinion, it covers all essential functions. In some places, can be optimized.
Before the problem with dust and because the brightness sensor occurred, the unit was the best I had ever. Because of the problem, which is a design flaw in my opinion, I give only 4 stars.
Addendum:
Whenever you really need the phone and it will stress to get to an appointment, for example, it begins to regularly reboot. Sadly record from Friday: 5 reboots in an hour. Hardware is really powerful but unreliable. Have all updates installed (as of 06/07/13)
The most important feature of a smartphone is reliability. That is why I give the phone only 2 stars.
Should the problem not be solved soon, I will come, despite great design and feel from.
Update:
Since the horror in the week I had more than 20 crashes, I have not had a crash. Nevertheless, I still have the effect that the mobile occasionally entlerrt overnight, what the alarm is disabled. Without the crashes, it is much more pleasant to deal with, which is why I give 3 stars. For the last two stars would not Microsoft and Nokia the effect of self-loading and thus heat einhergehnden development and functions of the basic apps (Music Player, detailed information about pictures / videos, etc.) be improved.