I disagree with a shotgun for home defense.......unless you are one that is very skilled in the use.
Beings that it (shotgun) is much longer than a handgun, it makes it much more cumbersome, even one w/o a stock, and only a pistol grip. A shotgun is also harder to secure close-by your bedside than a handgun is. And, if you must move from room to room inside your house (for whatever reason) it means that the muzzle will arrive before you do.
If you have a physical confrontation with an intruder, the shotgun will make it much easier for the bad guy to grab or take hold of.
I'm not saying that a shotgun is the worst thing to have in your house for self-defense, but rather, it's one that will be harder to keep close-by your bed (and out of sight) and harder to manage while you're trying to clear your house, if you think you hear something go bump in the dark of the night.