(30 Dec 2019, 7:59 pm)S813 FVK wrote *thinks back to the OK1*
And that had exactly the same issue they're going to face with the extension to the X21.
Why would you use a GNE service if it's just one route?
If you're travelling anywhere that isn't on that route, you'll have to buy an Arriva ticket as well, and at that point, why not just use all Arriva services.