We were enrolled in FSD Beta on our 2020 MXLR recently and the answer is "it depends on where you plan to use it." I've found that on divided highways it is excellent. City streets without too many turns, it is pretty good, and on undivided two-lane roads it is more trouble than it is worth. We happened to get it half-way through a road trip and were able to compare standard AP on the way out vs. FSD Beta on the way back. Mostly 2 lane undivided roads in the Colorado Mountains and the amount of phantom braking caused so much stress for my wife that unless I was babysitting (i.e. foot on the pedal, hands firmly gripped on the wheel trying to anticipate problems), I wouldn't use it. The real problem is that once you upgrade to FSD Beta your AP also upgrades which means you'll get phantom brakes with just AP/cruise control. That sucked.
BTW, I'm a huge believer in the idea of autonomous driving (hell, I happily paid for it after watching the AI day video) and believe that if anyone is going to solve this in the next few years it will be Tesla. However, unless you are mostly doing divided highway driving I'd sit tight until it matures (maybe version 11?)
we shall see what happens. They would not oblige to deliver my vehicle today, did not mention why. Did not figure they would, but I took a shot. The individual said he would keep trying and let me know. I imagine if I do not hear by 4PM, it is not happening. Though it would be easier to say there is a firmware hold on my VIN and be like "see yea later".
