You're likely to get a biased answer asking members of this forum but from my perspective SOTI MobiControl is heads and shoulders above Meraki, and most EMM providers for that matter, for fully managing dedicated (business owned) Android devices under both Device Administrator and Android Enterprise Device Owner. This holds even more if you are using dedicated Zebra or Samsung devices as there are considerably more OEM specific value adds offered through MobiControl for those manufacturers. 

From my experience the client environments that I've interacted with have been happy with how well Meraki manages their wireless access points and are fooled into thinking it offers the same level of control over other endpoints like Android devices. As you have now found out from your own personal experience, this is most certainly not the case.