While Cloudflare has been pretty neutral about censoring sites in the past (notably, pirate sites), the Daily Stormer incident put them in a though spot[1].
They talk a bit about Project Galileo (the link is broken BTW, it should be https://www.cloudflare.com/galileo), but their examples do not mention topics that would be controversial in western societies, and the site is quite vague. Would they also protect sites like sci-hub, for example?
While I would rather use a DNS not owned by Google, I have never seen any site blocked by them, including sites with a nation-wide block. I hope that Cloudflare is able to do the same thing.
1: https://torrentfreak.com/cloudflare-doesnt-want-daily-storme...