Ok, here are my reactions so far from this device. Let me start by listing my equipment:
Nexus 6P 6.0.1 Security patch May 1, 2016.
So connecting was flawless once I switch to the 2.4ghz. Held down the wifi button on the device until it flashed, and it connected to the app within 5 seconds. Kudos, this worked perfectly. Once connected I verified that the device was indeed on my wifi network, which it is showing as 192.168.0.98. I then switched my phone back to 5ghz, since it should communicate over the wifi the band at that point should not matter. Well it no longer sees the inkbird. So I switched back to 2.4ghz thinking maybe it only sees things on it's own band, so be it no big deal there, but even back on 2.4ghz the app is not able to connect back to the device, it shows offline. Now I went back into my router and verified it is indeed still connected and it responds to ping on 192.168.0.98 still. I tried unplugging it and letting it reconnect to wifi to see if that was the issue... no dice. Just in case the switching to 5ghz confused my ip stack or something, I rebooted my phone, once again still does not reconnect.
So as it stands this device won't work too awesome if I cannot connect to it. I have suggestions, no reason to just provide feedback without some suggestions.
#1. Allow static ip address to be set after initial config. Once connected the first time allow us to go through the app and set a static ip for the device.
#2. Allow us to add the controllers via IP address to the app. I would say let us use both ip(or domain names) and a port # so users can connect their devices up and be able to access them externally. Perhaps have a external address and internal address field
Internal ip: 192.168.0.98
External ip: boboki.com:3456 (which would route to 192.168.0.98)
#3. Allow us to force a reconnect within the app, so it actually tries to connect not just a refresh.
#4. Open up the APIs to the zigbee connectors.
All-in-all I like where you are going with this device, and this is a great first (beta) step in my opinion. I see MASSIVE potential in this product and as a beta product I see this as standard issues that we will see in beta. I am happy to provide more feedback, or test more beta app changes (ANDROID ONLY) for this for you, I can really see this being amazing and being used by many in their raspberry pi setups and other configs. Please open it up completely and let the public start to integrate it into their own products, that will be your biggest claim to fame. Great beta guys, it is shaping up really well!