It isn't free, it's more complex to set up and it uses some of its own terminology like 'Hosted Zones' that need to be understood. Just 3 ways in which it's not better.

It's probably better if you define the comparison in terms of flexibility/control etc etc, but simply stating it's 'better' doesn't really add anything to the conversation.

We host a big domain there and it's like five bucks a month. Of course we don't use the more expensive features just basic DNS and the API.