Just picked mine up and overall everything went very well. I was out of there in 15 mins and it only took that long because of all the settings to choose from. There was a minor gap issue that I noticed on the tailgate, but they said it was within spec. I also noticed the same gap on another Y, but not all of them. I can live with it. There was also a very tiny dent or maybe paint issue on the passenger front door that they said they will take care of later. Very hard to notice unless the light hits it just right. Everything else looks perfect and the vehicle was detailed well. Also, it does have HEPA. The driving experience is truly amazing. I have never had so much fun driving and I have had some fun cars.
How the pickup worked: I got an alert from the Tesla app on my phone when I got to the parking lot, so the app worked right away. I found the car quickly because they staged it up front. Checked the VIN and hopped in. Inside the vehicle on the center console was a document pack (with pen) and under that pack was the set of keycards (2). I signed the papers and brought them inside to turn in at the front desk. That was it. I never had to show any other documents or ID. They were very friendly and gave me a free toy model 3 for my son. One slight mistake I made - In all the excitement I pulled away before I accepted delivery in the account which prevented premium connectivity from working. So I logged into my Tesla account (website, not app) and accepted delivery (on the page that shows your EDD). Premium connectivity was activated by accepting. I drove an hour home and was disappointed to find myself home faster than I wanted to be. I just don't want to stop driving it! A very good experience overall and well worth the wait.
Autopilot calibrated more quickly than expected and I was able to try it. Surprisingly it worked great on winding back roads, but on a straight main road with clear markings it hugged the center line more than I was comfortable with. I'll have to use it more before I make any judgements though.
I will take some pics later today or tomorrow and share them.