In my house I find that the crown molding makes the rooms look bigger.
The crown molding also gives and elegant touch and adds beauty to the room.
I didn't have crown molding installed in my home when I bought it but later I had a professional come in and install the crown molding and it looks really great now.
Crown Molding isn't required when building houses but crown molding does increase the resale value of a home and is better looking in the home.
If you have crown molding installed in your home it will make the home look better.