I went in for the rear passenger window falling down (when not in use) and not going back up. I'd read about this before, so I wasn't concerned. But wow, headache-inducing buffeting/resonance over 30 MPH until I lowered the opposite window, though; I wasn't expecting that (and haven't experienced the like in any other car). Weird. Anyway, I was happy Tesla took it seriously and wanted me in that day, if I could make it (I could).
They took care of 6-7 other service bulletins while I was there, including a steering wheel click, and mentioned that and the 12-volt to me early on while I was waiting. I'd just noticed the steering click only this week, when turning sharply; I hadn't thought to mention it, but
they asked me if I'd noticed it, LOL. I was like "oh yeah!"
Also, they proactively replaced my 12-volt battery. I was never contacted about this, but I know they contacted others. Are they just replacing
everyone's, or had they just not gotten around to contacting me, I wonder? The new battery's a different type (I'm not a car guy; slow gin fizz depth charge or something, I think they said).
The other service items were Front Bumper carrier Bolt Replacement, Rear Window Regulator Reinforcement Clip (plus fixing the broken regulator, it seems), C-Pillar Brightwork Creak, A-Pillar Wind Noise, and Floor Mat Update (yay, updated mats and the new rear mats). Will I notice an even quieter ride from the pillar fixes, or are these just things that
could become problems?
I'd found a random screw on the floor of my car a week ago and put it into the door handle; I guess they found it (and hopefully put it where it belongs!), because it's gone now. ;-) Heh.
I mentioned my occasional pano roof creak (very hot weather; goes away after a short drive), but they didn't have time to address that. I don't mind at all, since it's minor, though I was bummed when I first noticed it earlier this year. Anyway, I've read plenty about it, so I know it's a known issue. I said if they could fix it when I bring the car in for regular service/maintenance, that'd be fine. (I want to wait till I've had the car a year, though, and not bring it in months early; I have just over 10,000 miles on it and pre-paid the service.)
They also gave it a much-needed wash, and unlike my old Mazda dealer, I don't believe Tesla used a dirty rag to make swirls. ;-)
Overall, a great service experience in Rockville! Nathan's a champ, as always, and the new folks seem great: Jonathan (new to me, but seems like he's been there a little while) and Andy (Andi? sounded like she was pretty new). Everyone was friendly and seemed to really care about even minor issues. There were a lot of cars there, and more were dropped off while I was there. Unofficially, it sounds like Tesla's sold most or all of the rest of the year's production!

Sorry to new buyers, I'd rather people have to wait a while, than having production outstrip demand. Oh and Nathan mentioned a couple of people in the area have traded up, one getting a car from...Oregon? and another from somewhere in the midwest, I think. Great if you can spend more on your car, but I'm very happy with my S85. The Tesla grin doesn't fade.
Just to be clear: I consider all of this minor stuff (even including the 12-volt battery replacement, since it was proactive; I know it's not minor if it dies on you, though!). The car's still awesome after almost 8 months!