Pro:
The Lumia 1520 fits perfectly and holds very firmly. The display is perfectly protected by the light soft surface (such as an eyeglass cleaning cloth) of the lid. All buttons and ports are easily accessible. The camera is well protected Duch lots of leather around the lens, the lens is free.
Cons:
The FlipCase is very thick and carries on pretty. Toll I think the Lumia, the slender shape, where it is due to design in the dimensions but otherwise huge. This FlipCase this advantage is nullified. However, ensuring a proper protection. Charging is only possible with FlipCase open, since the connector is on the bottom of the Lumia. Well - you should know that even if you At length a FlipCase. For me it was mainly about the protection when the Lumia is in your pocket. The greatest disadvantage is the small lock at the top. I can not imagine that lasts a long me. The locking mechanism is not particularly sophisticated, holds at the moment still good but not close firmly. I am afraid that this is a weak point. The leather feels cheap to - but that's worth at the price no criticism.
I'll keep the bag. There is very little bags on the market for the Lumia 1520; otherwise I would have certainly picked me a superior FlipCase or bag in Book Style. Those looking for an affordable and protective solution for its Lumia 1520 is thus certainly well served.