I've also been impressed with the service and turn around, my original Rohloff has been back and forth a few times for various reasons, it could do with having an oil leak sorted, but I've been saying that for a couple of years...
The only issue is the cost of sending, well more the insurance and although I know loss and damage are rare I don't want to risk it, I might wait till next time I'm down that way and drop it in.
Also had excellent service getting SON hubs serviced, I know they send them to Germany for the work, but they don't hang about getting it back to you. I hope Brexit hasn't disturbed that.