I have been using this case with my Canon Powershot S500 and never had any problems with it. I really like:
1. the fact that I can use every single control on my camera
2. the compactness of the case, which allows me to take my camera on every dive. I can even put it in my BCD pocket.
3. the ease to clean it and replace the seal (if required).
4. the reflective shield, which many of the other models do not have. The shield allows me to take great macro shots without an external flash.