Pretty awesome move by the bunny team. I've checked it out and I really like the interface. But one thing I really like is the scripting ability to script DNS responses. Good choice opening this up in the product portfolio, even if you still need to use $1 a month in spend in order to support this.
That being said, their monitoring is a little light. I'm the founder at DNS Spy and having an external tool that can monitor your DNS service as well as identify problems when it comes to your DNS record configurations plus additional security checks and phishing domain detection.
Take a look at our write up about Bunny's move. Congrats to the team.