For external impression: The Card Safe is made very robust and stable. Also the closing mechanism is very firm (almost too tight) and holds absolutely perfect. The water tightness I now have not been tested, but based on the rubber seals, I'm going on the assumption that the manufacturer's instructions thoroughly which keep their promise.
To accommodate the card: This is where I am deeply disappointed by the product. When I tried to insert the first memory card, it occurred to me that these are very difficult to fit into the specified places. When I tried to remove the memory card, to me this is no longer managed from the start. The card is fully seated so that I could no longer see it with your hand. I had to get a pointed object to "pry" the card back out to. I could not believe it because it's a premium product in this segment. Finally, I then again packed all four memory cards in and have this night left over in it. Perhaps "stretches" the rubbery use after a certain time yet ?? Well, think again. Even the next day were the cards no longer simply refer to me as. I had to go back every card out "levers". The cards go in how to get out with increased force. The map does certainly not good, because the cards sit with extremely a lot of tension in the slots.
Ultimately I have the part sent back, because this is absolutely out of question for me. Finally, you have to backup its memory card, in the heat of battle, sometimes come quickly zoom. This part that was absolutely impossible for me.
I find it very unfortunate, because the other processing the Card Safes is absolutely great and very robust. No idea what the manufacturer has been thinking, but that's part of it is recommended in any case.