Disabled PDC yesterday, definitely more direct and precise.
You do need to pay more attention on the highway though as it's easier to drift out of a lane.
20k miles daily driven/drag racing/spirited driving on E85.
Worst 11mpg, best 21mpg.
No issues with O2 sensors, no issues at all other than it has stalled 2-3 times when coming up to a light and downshifting (auto), it gets a little blip happy and stalls. Not a big issue, 3 times in 20k miles I...
I drove mine out of the dealership and onto the first windy road I could find and went for it... soft break in doesn't work. Opening that can of controversy there.
Same buzzing I had, it fixed it. Play with the slider, there's not much movement but enough to fix rattles. Give everything a light tap to see if you can hear it rattle.
I was too, just pull straight down from the corner of the door and it'll release, then just pops back in with some effort.
Scary to do, nothing once you've done it.
Been using it for a few days, works perfectly so far! One hiccup where Android Auto wouldn't load but turning off the car and back on fixed that immediately. Recommend it.