I moved my dns to CF.
Dns-only mode for safety is on every appliable DNS record.
There is one thing that doesnt work properly - nslookup on non existing subdomain doesnt reply with error.
ie nslookup non_existed.mydomain.com 22.214.171.124
It makes my system fault because on some servers i have vpn which doesnt resolve local dns name and just ask google about it. And 126.96.36.199 doesnt return erorr which i would be more than likely to see.