It's already June, My BB case is holding up well. It is conforming to my body a bit (if I had 'abs of steel' this would not be a problem!)
But the seams are still intack, the sleeper magnet still engages, the magnetic flip cover works well and the belt clip remains nice and tight.

BTW the magnetic flap takes 1 finger to release it, but it holds the black berry in very snuggly - you could pull the BB out without removing the flap, but you would be actively trying, I have not had the BB fall out of the case once.