Not sure how that would differ from the old Save Surf that was in the AOS browser add-on. Many people disliked that feature thinking that a security base product has no right to be offering this type of thing.
Personally I would probably opt-out of this as I actively block ads (targeted or otherwise) in my browser.
Even with the assurances in the information that personal data will be removed, I still see this as an area that the Privacy naysayers will jump on (excuse the cheap jump shot pun).