I didn't know how badly I needed a working tray to upgrade my manicure experience! After two uses, I already know I won't be able to go back to working on a flat surface with all my tools spread willy-nilly. My only issue has been not having enough of the nail polish holding sections for my lacquer, top coat, and bottom coat. I've remedied that by just switching out my top and bottom coats in their slots when I'm done with applying my top coat.
Also, I've scuffed the plastic by accidentally dribbling acetone on the finger rest portion. This was user error, especially when working with acetone around a plastic that is not meant to come into contact with such a harsh chemical. From now on, I've been more careful about adding my acetone to the glass outside of the working tray.