If you need to go to the bathroom, if you are hungry/thirsty, if you want to do some shopping, this is a great stop to make. If none of the above fits you, this is not a necessary stop, so skip and go to your destination.
I was hungry, so I had Taco rice (which is one of the famous Okinawan food) and garlic steak (which steak is also famous in Okinawa). I was very skeptical about Taco rice, but it turned out that it was very very very good! Garlic steak was decent, but it didn't have as much of a wow factor as Taco rice. I highly recommend you to try Taco rice!