$20 room vs $30 room. Day shift vs night shift

Up to now, I have always been private room for services, and I’ve never had a dance at PO that didn’t end with complete satisfaction. I’ve also exclusively been a day shift visitor.
To all of the PO veterans out there, In your experience, what is the difference in the $20 room vs $30. If you and the dancer are alone in it, are Billy Joel songs available. Does the $20 room ever get bust during night shift?

Please share your thoughts and experiences