The "-":
_ No holes to see the LED notification.
_ The plastic shell in which one fits the S3 is of average quality.
_ Leather is average.
_ In hindsight, I think that opening such book (left) is less practical than a vertical opening. Indeed when one wishes to take a photo or video coverage above should not be folded behind the S3 because it would then cover the camera sensor. We must therefore maintain the partly open which is really not practical at all ...
The "+":
_ The holes for photo buttons and sensors are well positioned.
_ The whole remains attractive to the touch and to the eye.
_ The magnet holding the closed case is perfect.
CONCLUSION:
I did not redeem this product because ergonomics is downright annoying when you want to take a photo. I orienterai rather to a vertical opening cover.