The mobile phone is well protected in the shell of what it must be, because every now and then my daughter (3) may play with it and find it because sometimes rudely down.
The buttons can be very good, if not better serve as a non-enveloped. For camera and flash a generous recess is present, so that there is no shade in the photo is of the envelope.
The casing makes the phone larger but it does not contribute so bad on how other stable cases (at least that what I know). The corners are again strengthened a little more. The edges are made smooth so that no edges are to feel uncomfortable when holding.
So I am very pleased with the cover and can recommend it only.