I have a full stack of Meraki Go and Meraki equipment.
The Go access point does not have scheduling or most of the features of a MR. That said, you can create an isolated guest network, set usage limits and get email notification when equipment goes off line.
The firewall subscription gives you Cisco Umbrella, but you cannot disable content filtering. There is no Snort for traffic inspection, but there are layer 7 rules in the access point.
The switches support POE, and cable testing, but not isolation.
I know this is just a smattering comparison. Let me know if you have any specific questions.
- Dave
Dave Anderson