Pros. This is real barn wood with authentic nails in it. Gorgeous. Stained. Planed. 

Cons. If you cut it you hit a nail. Pay attention. 

Also it would be nice if it was a SHELF. It’s not. It’s wood. 

It is not notched to recess any hardware. It doesn’t include hardware. It’s a piece of historic wood. Set it on brackets. It becomes a shelf. But if you want the floating shelf look, it’s a little more work notching in hardware. Mine are not level because I do not have that “notching” skill.  So it’s wood. On a wall dropping forward like a limp shelf improperly installed. Which is what is is.