There are two types of performance; perceived performance and actual performance. To me, perceived performance is the exact balance of what you need or desire, even if it's not the top performer in reality. It sounds like you've weighed out your decision.
You are of course on a Subaru forum where Subaru love is high. That being said, I'm not unreasonable and I am pretty well versed in cars. I have love for cars of all makes. With all of this in mind, I personally would never buy a VW because of their reliability, or lack thereof. Don't get me wrong, the Golf R offers incredible features wrapped in a very cool looking package. I just hope your ownership experience is everything you hope it will be. I would spend my money elsewhere but I'm happy for you and can't wait to read your reviews.