It does brake hard and early when it sees a possible problem, this is why it takes more than a good sensor suite for level 2 autonomy. Tesla FSD did the same shit before they revamped the system.
It's pretty clear -
One-time purchase ($2,500): The Autonomy+ upgrade stays with the vehicle (tied to the VIN). If you sell or transfer ownership of your Rivian, the buyer/new owner gets to keep and use the one-time purchased Autonomy+ features (no extra cost to them). It does not transfer...
I bought the lower console insert. It's not useable, my 32 oz Acquatix bottle doesn't fit, I had to take out two of the four clips and even then the unit pulls out when I grab the bottle. On top of that it hits the vents when you do manage to get it out.
We have 2 EVs and share a single 50a. Tesla wall charger. I drive an average of 10 miles per day, my wife commutes 40 miles (one way) 3-4 days a week. We have not had an issue, even when I was driving the Hummer EV. She charges every day, I charge when I get down to 40%
Mine came with a Jack and a full sized spare. If I get a flat somewhere that I can't do a change myself I'll call AAA, if it happens in the driveway I'll probably plug it and take it to the tire shop ASAP