I have the Pro 3 set up.
The base unit local recordings are only to a USB connected hard drive or stick not to a network drive.
I run the front door camera to the cloud for $4.99/month - the others are all to the local USB drive. Thats been solid. Also use an Arlo door bell connected to that camera.
A config like this may be an option rather than re-investing depending on your requirements.
Zones only work if fully powered unless connected to the subscription by the way……
Mark