Synthetic lawns have to contend with people's memories of unattractive Astro Turf from the mid-sixties. They have improved tremendously since then - and I feel that when it is installed well and for the right use and place - it can be a brilliant successful solution.
This is a picture of a gas station in the Hawaii Kai area of Honolulu on the island of Oahu. It has a nice bit of landscaping as a part of a memorial for Valerio Nolasco who was a beloved community leader. The synthetic lawn has been installed so perfectly on this uneven grade of space that it looks real. No weeds, no mowing or trimming, no watering (Hawaii has a water problem so this is a very valuable feature) and it always looks green and pretty.