Bests & Worsts Reviews from Amazon

I liked the fact they are smart detectors. My thought was they would give you flexibility to silence false alarms and notify you of events or issues while you are away. That is-- of course if they work and are reliable. I am a computer professional with years of experience with networking and troubleshooting computer issues. So, I a have better than average computer skills and knowledge. NEST PROTECTS are a serious pain when trying to get them to be stable on your network and reliably communicate to the server and each other. I had thought that the issues we experienced originally were that i had a weak WIFI signal in various areas of our house. (4900 SQFT) so, I did not complain much, expecting it to go away once our new mesh WIFI network was installed. My WIFI is now strong and full strength in all areas of the house. I still get offline units, that will not reconnect until I remove the unit from the software, reset it to factory defaults by holding button for 10 seconds, and then SCAN the bar code on the back to add to the software (BTW, the manual method without scanning has never worked for me. so, the unit must be removed from the wall and scanned) MY major concerns 1. Will these really work in a real fire? I have serious concerns. 2. Randomly, a unit will go offline and never come back till I reset it, it is various units through-out the house. 3. The app tells you very little, so how do you know the interconnect feature will even work? 4. Self-Testing the units, the offline units never respond? if they were interconnected, they would work just like a cheap hardwired unit does. 5. The app is very weak and immature in what you can do or see. For example, why must you remove a unit from a "house" in order to reestablish connectivity, versus just review and edit the settings. ( an advanced settings tab would be great) 6. No method of direct connect even over Ethernet. BTW, POE would have been cool. relies on WIFI. (which seems unstable) for the $$$ spent, I fear, we will need to replace them with traditional units, in order to be sure our family is safe. I had hoped for much more for the money spent. especially given the fact that most online reviews are raving (not sure why)