Infoblox IPAM has improved and is better, but it needs to have an external GSLB functionality. Currently, the solution has a GLSB functionality for internal appliances, but for an external user, that functionality doesn't exist.
Infoblox IPAM also needs some improvement on its threat engine and RPZ policies, or DNS firewall or DNS policies.
An additional feature I'd like to see in Infoblox IPAM is zero-touch provisioning in terms of the appliances. Currently, there's zero-touch provisioning for cloud-based devices, but for physical appliances in branches, there's none, so you still have to do some configurations. For example, if you have existing DNS infrastructure and you need to set up Infoblox IPAM in new branches, and you need more appliances, you should be able to just plug the solution into the network, and there shouldn't be any manual interference required.