If you completely flips the cover it not clings so completely to the back, which cause is the stable edge on the side on which the front cover is attached. At first it feels a little weird so with both hands on the device but you get used to quickly.
Now you have to decide whether you want complete protection for the phone, because with this combination only a protection for the display is given. I doubt if it falls down the back, or edges scratches remain free. Although one must note that the reverse also belongs to the flip cover and therefore yes can be exchanged for the original back cover again. Einizig the edge / frame are prone to scratches because there is no protection for this exists.
For me the only shortcoming that it has as the first to review already criticized is no recess for the notification LED. But will the day look I there a suitable hole punch. Therefore, for me there is only 4 stars.
Conclusion: For me, the ideal flip cover, which gives my phone a nice classy look. The only drawback, as already mentioned the lack of recess for the LED.