I go back and forth on this one. On one hand, it does not really add anything and for a long time I did not really use it. There isn't much point without an appearance system (or a more crucial one). ...
Infact I just remembered that one time I made a beautiful cluttered filled house. I was so happy and pleased with it. Then came live mode and my sim was standing in the middle of the floor and I like hmmmmm so what can I actually USE ?!? nothing ..... he just could stand there ?