I did what you're contemplating and I wish I hadn't. Autopilot only works if the road is well-marked, sun isn't shining in your path, road doesn't curve sharply, and on and on. I wish I'd waited for 2.0. And don't buy 2.0 until you've driven it. Current auto-pilot requires you to basically drive the car - keep hands on the wheel and be ready to take over at any time. NOT WORTH IT.
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Well I have to say that your experience is the complete opposite of mine, and from comments elsewhere on this site most other folks too.
I am constantly amazed at how well AP copes with all sorts of conditions on all sorts of roads.
I find it remarkably effective, genuinely a joy to use and definitely make trips easier, and yes you are advised to keep your hand(s) on the wheel, because you are still in control of the car.