Stoeger Coach Gun

Thanks because I have been thinking of buying a Stoeger Silverado Coach Gun 12 gauge Double for home defense.
What would be some of the other advantages a double might have over a pump gun for home defense and which shells would be best to use in it?

Also, the overall length of a coach gun is shorter than a tactical, right?

Also, I suppose if you didn't want to pinpoint your location in the dark, reloding a double would be better than racking a pump and the second shot would be faster?