If he continues like this until the end of the season then I will be very happy indeed. I still don't think he'd have justified his fee but that's because we paid way over the odds in a last-min scramble.
But let's see that happen.
I'll be happy if he puts in this level of performance from now until Christmas. Everyone's allowed off days, but if he overall stays consistent he can be useful.
But it's too early to say.
Gray, on the other hand, has probably already justified his fee because he's the kind of winger we needed and was so cheap. However, he started well at Leicester and Leipzig too, so he has to keep it up to show that he can cut it at this level.