I want to refinance my mortgage to a lower rate, an appraisal was ordered. what is it based on.?

The appraisal was ordered, my loan agent said expect them to call in 2 - 3 weeks because they are backed up. I had planned on doing some major staging ( moving extra stuff to storage, arrange furniture to show well, yard clean up, etc ) of my home so it will show well when the appraiser is there. Well the appraiser called and can come out tomorrow! Is it important to have the house show well or will it make any difference at all to the appraised value of my home? So my question is, should have it appraised now or wait a week when I have all the finishing touches done?