I have always loved Manhattan Transfer since first seeing them in NYC in the 70's at a benefit concert for the Chemotherapy Fund. I fell in love with them instantly and have always particularly admired the energy and vitality they put into their music. "Operator" has always been my personal favorite, and it's also included on the CD. "Twilight Zone" is terrific and you'll be humming it long afterwards. You can't go wrong with this group, so don't!