Just wanted to update my situation from the other page a few back.
I was worried from reading prior posts on reddit and here that the service centers are just a money grab. But I can say I arrived with photo+time proof of when my screen has gone totally black and I have faced major issues mid drive with the car. Without any push back or bs they replaced my emmc(daughterboard) for free. In all it takes like 4 hours at the service center to have it done, for me it took a little more because apparently they damaged that silver plastic bezel that goes around the screen so they gave me a new fresh one of those(was a 300 dollar part so they had to get a manager override approval for their goof heh).
I also wanted to knock out 2 birds with one stone to get standard car work, a tire rotation, too. They only charged $35 for that as well, which is a little more than local shops would charge me in South Carolina but for the $10-15 extra I can't complain saves me making another trip elsewhere(bought my tires on amazon so I don't get free rotations anywhere).
Will continue to see if I have any problems after the daughterboard swap but I expect the issue to be resolved now. One downside is that you lose your driver profile, homelink and nav maps when you get the swap. I am redownloading nav maps on my wifi and will be configuring everything back home tomorrow probably.
Overall besides the really long wait to dump the data into the other board the experience was great and it didn't feel like they wanted to side step the issue. I would say it was a positive experience for me, good on you Tesla. Hope the NHTSA investigation leads to all early Model S'es getting this fix free same as I got.
For reference I have a 2015 Tesla Model S 90D, and I visited the Charlotte Mathews NC Service center.