Best answer by Gregor
I have noticed 4G+ on my phone in quiet a few areas recently. I have never paid to much attention to it though. I am not heavy download/upload or stream on the go user so H+ is still good enough for my needs but I will be following it more closely now to see how often and how strong 4G+ signal is going to be.
I just got it on the way to Edinburgh but it disappeared very quickly.