You've come to the right place. I'll answer how I can:

1. It depends on the workman and on his tools. A reasonably adept person with a couple of good stones (like the Norton combo) should be able to pick up the basics (keeping a blade in trim or restoring an edge that has just fallen shy) in a few hours of practice. There's always a more challenging project and a less talented honer.

2. You'll know when the shaves won't stop pulling regardless of how you try to get the edge back on the pasted paddle.

3. I've hung mine from door knobs, a door arm at the top of the door or a coat hanger stuck on the wall, but I usually keep it hung on the cross bar of my wardrobe which is just above waist height where I like it. Loop a loop of leather or string through the hardware and you can hang it wherever you like.

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