The handling is very simple ... use camera, compress everything, curl up and ready. But you do not even need a minute. Had formerly a real underwater housing (insanely expensive!), Where the onset of the camera always quite a procedure was (clean gasket and edit with silicone ... look, that yes no mess like grains of sand, etc. are in the ring and and and) and me anyway then once water is pure come and the camera was broken.
With my Canon PowerShot SD1200IS the housing works quite well. You can reach all control buttons, even if you have to be a little careful that you do not inadvertently changed settings. The quality of the photos is in the air in my opinion as ident no bag and also under water to get quite reasonable shots.
The only thing that a small hook is: You always have to take good care that the lens is right in the middle of the pocket window, because otherwise the edge has the plastic lens of the pocket at the photo on it. Works but reasonably and if a small edge is on it, you can machining away the over Photoshop.
In sum, I would the case (especially for the price) as a nice feature recommend fürn holiday thoroughly.