Congrats mojonez. The E-Series Twilight Lighting is very similar to the Constellation Lighting mpkelley20 speaks of, except it doesn't have the lights on the outside corners of the tub. It does however have cup holder lights in 3-4 corners of the hot tub, which the Constellation Lighting doesn't offer. What color shell are you getting on the hot tub? The standard LED lighting will still look pretty good if you're going with a lighter shell color. If you're going with a medium to dark color (such as Tuscan Sun, Midnight Canyon, or Mayan Copper), you'll probably want to upgrade to the Twilight for sure.