Problems:
* The list is totally opaque (I am wrong, see EDIT 2 below)
* They use the hard work of people like EasyList and subjectively apply it (though not that big of a deal, they do make it free/open for all uses after all)
* They build it into the browser instead of as an extension or working with the existing ad-block community
I urge everyone to keep with uBO and the like. How anyone can be for NN and then think a coalition can be an on-by-default gatekeeper of good or bad web items I'll never understand. At this point, I have a hard time separating browser from ISP wrt end user control and limited choice (especially for the masses who aren't familiar w/ these kinds of details).
EDIT: I should note that this is the same mechanism by which the safe browsing lists work that tell you a page may be bad. For consistency, I disagree with that too of course, but I find the motives and targets here to be much more sinister. I would also say switch to FF, but they also use the secret safe browsing lists, so they'll probably switch to this as well. I say find a Chromium/Gecko based browser w/ all the ancillary shit like this removed.
EDIT 2: There is a method of obtaining the entire list via the API, see comments below. I was wrong about the opacity and stand corrected. Still doesn't alleviate the concerns around gatekeeping. I wonder if Google would let me keep a running update of this list in GitHub so we can all watch changes and other things like adblockers could use it.