3 days
I was sort of unimpressed with mine. It was all variations of:
-Likely lives in <city where I have every order shipped>
-Likely owns <thing I buy accessories for>
And then for some reason it thinks I own a Dodge Ram. I have four vehicles saved to my account. None of them are a Dodge Ram.
I found it using my phone’s browser and I can’t remember how different the mobile page and desktop page are, so YMMV, but:
I clicked my name and a menu popped up. On that menu under “Your Account” I clicked “See all options” and it took me to a page that had “Hello” in the upper left, and beneath that a link that said “About You”, which took me to the page with that stuff.