Benefits:
-good maintenance
-design succeeds thanks to small angle, the sign Sony Ericsson, smoother look inside to protect the screen from scratches
Disadvantages:
-a hole was made for the camera and flash but the sound was not actually producing a very sound and obstructed an unpleasant listening by loudspeaker
-l'aimant is on the plastic part on which the phone (see photo-cons) which adds an additional layer and forms a space between the lid and the screen causing micro dust accumulation between the two (especially when in a pocket)
-The phone unlocking button is also placed above the magnetic support through the two plastic pieces to make it accessible but more difficult and it also causes a haven for dust
PS: I would point out that, in my acquisition magnet (again) does not set very well but since (I've since 3 months) it binds easily.