Cons:
There's no flash. For snapshots in daylight, however, the camera can see.
It's a fixed focus lens. That is indeed the camera quite fast triggers but denser than 60cm is not ran you.
With QR-code makes no problems but Barcodes not go. An autofocus lens, there are only from the Lumia 640th
The phone has no compass. Although this is the GPS navigation not necessary but a few apps set the display properly.
There is no camera button.
Conclusion:
Mir is the low price and compactness important than the listed minuses. Therefore 5 stars. The 830 or 730 would eliminate the counterpoints. They are then but significantly more expensive and not as easy to handle.
PS .: Have bold colors. I find the super crisp colors.