'Feel' being the keyword. Faster, generally yes. More secure, not well defined and users are generally wrong.
> nefarious intention
I don't believe I've heard any complaints of nefarious intent.
But let's be clear, this advantages Cloudflare over other CDNs. That they treat the DNS data very well does not mean they won't have an incident. As well, they are more of a target due to the concentration.
> Until Cloudflare are proven to be nefarious actors,
Nefarious wrt whom? For end-users taken individually, I agree, I don't see and it's hard for me to imagine mal intent.
But IMHO they are bad for the Internet. I mean, more power to them and were I a leader there I'd press the same agenda, but as a 3rd party, the way I see it is that in 10 years they are going to be an anti-power much like Google is. Addiction to their services will allow them to trample over what's good for all.
What I dislike most about them is that they promote themselves as purely a force for good. Except for a few PMs and execs I'm 100% sure they believe it. But it's a disservice to never discuss the negative aspects of any of their services. And woe to anyone who does.
As for proven nefarious deeds, do you not consider "banning" sites from using CF nefarious? What if they take it to the next step now, and stop providing DNS for those sites? Given their stated reason for bans, yes it could happen. Why must you wait until they prove to be nefarious? The concentration of power per se is a bad thing.