Thank you to the Instant On team for adding the features mentioned above in version 1.4.0
These features have allowed me to retire my IAP-205/305's and move to AIO, I now also feel comfortable recommending the product to others.
The only feature missing for me now is the ability to use zones with each SSID so that I can have a certain AP only broadcast a specific SSID. I know Client Match is supposed to steer clients to the best AP but I've found that it doesn't always work that way, especially with non-mobile devices. My solution in the past was to have all the AP broadcast an SSID that was used for roaming clients (phones, tablets, laptops, etc.), then each individual AP would also broadcast a unique SSID, I would set all non-mobile devices (thermostat, energy monitor, smartplug) in the same room to connect to this unique SSID/specific AP.
Anyways, thanks again Team! Looking forward to future updates!