I think many enjoy the appearance of the coach gun as opposed to the practicality.
To me, the appearance is a double barrel shotgun with a very short barrel (18 & 1/2 inch to 20 inches). It could be a good home defense gun except for the safety concerns I mentioned before. I think a good pump gun would be safer and just as quick as a double barrel with double triggers. This is unless you want the appearance of the coach gun which to me includes rabbit ears.
I am not an expert on coach guns, but I do not find the one I have as very safe. It does not have a safety after you cock the hammer.
There maybe others out there which are better. A replica of a coach gun or an actual coach gun is an old style gun in my view.
I think if your spouse handled mine and attempted to shoot it she would agree. Like I said before there maybe better coach guns out their than mine.
This being said, I have a Mossberg 12 gauge (former Alabama State Highway Patrol gun) model 500 with a 20 inch barrel and 8 round capacity as my primary home defense shotgun.
If you will take my opinion, it is a much safer and a better gun over a coach gun. I can not think of any circumstace where a coach gun would be better.
Remember, a coach gun is an old classical design of what was the best at the time. It is antiquated to today's standards.
If you or your spouse wants a coach gun, then I say go for it.