I do see the dancing lane lines, as others. but once locked in, fairly stable. I found AP1 lane lines really stable. Here's my sequence, so if your camera calibrated and you have TACC, you could be on a similar path.
Auto-steering enabled itself yesterday, after 4 days since v8.0(17.3.2) install.
Day 1: Camera calibrating note in cluster screen. Drove about 40 miles.
Day 2: TACC feature working
Day 2 - 3 " Driving Assist Features Unavailable" and "Autosteer is Disabled on this Road"
Lots of testing on crowded roads for the team, no luck to engage.........using TACC as often as possible.
Day 4 Both TACC & Autosteer working on HWY 680 near Pleasanton, slow traffic <45mph
Day 5 Tried Autoparking, but no luck so far, not getting the "P" offer