I got the full update the first attempt with no issues. All the rolling stock is back to default, as expected. Honestly I don't know what all the fuss is about.
I tried out Cajon pass, it looks identical to me. None of the physics issues have been addressed, as expected. Everything looks the same as before. None of the track has easements or superelevation, so I don't know what "bringing it up to TS2012 standards" is all about.
Apart from moving a few files around, I have no idea what this update was supposed to achieve.
