Update after a few more miles and a closer inspection: The general condition of the car (inside and out) is excellent. It had done £4.5 k miles when I picked it up 2 weeks ago from a main VW dealer.
I have made most of the necessary adjustments to the basic settings (individual driving mode, digital dash layout, phone connection, central locking, etc), so it now feels a bit more personalised. I have purchased a space saver spare wheel off Ebay and I have fitted (hardwired) a Garmin dashcam that I took out of my 7.5 before selling it.
Driving wise, the car has all the acceleration and power that I will ever need and the handling is just what you would expect from a FWD GTI (this is my third, starting with the brilliant mk5 back in 2005). The 7-speed DSG gearbox seems slicker and faster than I remember (I have been driving a manual GTI for the last 3 years) and it seems to respond well when flicked into manual/paddle mode. Like many, when I first saw the tiny gear selector in the Mk 8 I thought it looked a bit pathetic, but it is actually OK in use. I particularly like the way you can quickly toggle between Drive and Sport.
It may not drive any better than a Mk8 (I suspect that the extra 20 BHP doesn’t make any real difference in 99% of situations) but the welcome changes to the infotainment system and the steering wheel controls - probably more accurately described as bug fixes - make the car easier to live with. Personally, I like the subtle exterior styling changes but that is obviously subjective. I know it’s a bit childish, but the front light bar strip and the illuminated VW badge are very cool, as is the interior mood lighting.
Irritations? It’s a shame you can’t turn all the “driver assist” stuff with one button click and its also a bit of a pain that the car resets the driving mode to “comfort” every time it starts. More “nanny state” stuff masquerading as progress. Oh, and the unwelcome return of the cheap bonnet strut instead of a hydraulic one (in the 7.5). The 8.5 GTI is still a very rare beast in my neck of the woods. I haven’t seen another one on the road yet.
PS. I was going to attach a couple of photos but I got a "Website reported for potential phishing" warning message when I clicked 'Add image to post'. Anyone else had this? I think it was generated by Google Chrome.