Just putting this info out there...
After getting many pits and surface chips in just 15 months of ownership here in the Bay Area, I took a rock to the windshield during a mountain drive last weekend that was almost dead center in my vision. I also had some mysterious staining I could not remove on the windshield no matter what I tried, it'd been there since I got the car. Decided I was done with this shitty Vitro Mexico glass VW uses.
Called around and found a guy who could source Saint-Gobain Sekurit glass, which is what every other window on these cars is. Had it installed today. Most other installers could source PGW (PPG) or Pilkington. Having seen a Pilkington replacement in person recently, I wasn't overly impressed.
It's DOT618 which is European build: SEKURIT SAINT‐GOBAIN HANGLAS POLSKA - Zary, Poland. It seems to be better than the original in terms of clarity. It also came with a small rubber gasket/flange along the top of the glass, which may be standard on cars that have sunroofs based on a search. I don't have a sunroof so I don't know if that's a thing, but I do know my old windshield did not have this, but this fits the car fine.
It also features of their "dBControl" tech which claims to reduce noise by 10dB over "other windshields", and their "Thermo Control" tech which "strongly decreases the direct transmission of the sun's energy into your vehicle." according to the site I was taken to when I scanned the QR code on the glass. I was surprised it had a QR code, and the installer said he'd never seen that on any windshield before, but it turns out it has info all about the windshield, which was cool to see.
The Saint-Gobain part is 8503951102, which is a match for VW 5G0-845-011-M-NVB and 5GM-845-011-C-NVB based on Google searching. It fit my car perfectly. I do not have any sensors other than my self-installed auto-dimming rear view mirror, so this would not be the correct windshield for people who have sensors for wipers and auto-headlights, or DAP.
I found the following document while searching outlining some Saint-Gobain parts for MK7 it seems.
http://saint-gobain-autover.com/sites/default/files/VW Golf VII 2013 Product Announcement.pdf
I paid under $400 installed. Here's to hoping the gamble on "non-factory" glass without a VW logo, but from a VW OEM, pays off.
Edit: If you're in the Bay Area, the installer was JVS Glass Services. It's owned and operated by a guy named Jose. He was very good at responding to messages in a timely manner, and showed up 10 minutes early to the job. He was very careful and me called to come out to the car when he had a question. He was also interested in some of my mods and just generally seemed like a cool guy.
I also forgot to mention that I had a brief conversation with my Service Advisor about the glass, just for shits and giggles to see what VW charges to replace. During our conversation, He literally said to me 3 times, "Yeah, I'd try something else." when asked how often they're seeing this, or talking about quality of the glass. He wouldn't really say more, but he was definitely heavily implying that they're well aware that this factory glass
SUCKS.
Edit 2: It's raining today, and my wipers even seem to like this windshield better. Not really streaking the way the factory one did...
Edit 3 by request: