The J5 is a rugged, secure key safe. It's a bit of a door wart but it does what it is supposed to and the combination is easy to program.

I use the J5 on an external door. covered with a custom J5 rubber boot to keep out the weather. Unfortunately, the boot is not held fast or trapped when the lock is closed, so it can be peeled off but it won't fall off.

The over-the-door function works well but it's hard to imagine how it could be used at the full height of an outside door. (A ladder would be needed to climb up and enter the key code.:-))

I therefore attached the box to the lock stile on the door about halfway down just above the lock. It won't stay there unassisted so I screwed it to the inside of the door using the holes in the provided bracket.

The main gripe is that the internal key hooks really only take cylinder size (Yale). Lever lock keys have to be laid in at an angle. I was able to get two in.

The box is slightly expensive, but looks as though it it is built to last.