Okay, guess it's best to start at the beginning. This all started a bit over a month ago. Feel free to skip to the question.
I have a "man cave" that I'm finishing up and I thought I'd see how "cool" I could make it, so I went online and got some Chinese products to control things around the cave. They are all WiFi based and use a smartphone app called "Smart Life", the devices come from various generic companies, but Zemismart is one that I have several pcs of (light switches mainly).
I've enabled Smart Life with Alexa Skills and use voice commands and Alexa Routines to get things going. Routines works 7/10 times I would say, geolocation never works unless I have the Alexa application open. I do this like lights on with the PIR, play music when I open a door in the PM, tell me the news when I open the same door in the AM. So on...
And so I fell into the rabbit hole, I got a thermostat for the house, a garage door opener, etc. All WiFi based, all generic Chinese stuff that works.
But every now and again, when my internet isn't working, or is working but everyone is streaming something I'll have some lag or no input at all. So I dove deeper into the rabbit hole.
I purchased an Echo Plus (v2) which has a ZigBee hub integrated and supposedly it can do off-line commands (very basic stuff as far as I can tell) and I have ordered 2 Chinese ZigBee light switches and am waiting for them to test the limits of this offline system. I got the Echo Plus because I use Alexa on my phone mainly, this was more convenient, I already have 2 Fire TV's. The speaker and drop in feature was also nice since I have Prime Music as well as Spotify. Things other hubs don't do.
Now onto question time. I'm reading about the HE system and I really like this non cloud based backend and don't know why no one thought about this before. To me, it seems like the logical choice. In my configuration with the Echo ZigBee Hub, I would disable Echo from being a ZigBee hub since I want everything to be driven by the HE system, but then I would link HE+Alexa together so I could get my voice control working and doing things remotely (like opening the garage door) through Alexa contacting HE to push the command. My system would still work offline, but have an online gateway through Amazon (which I'm guessing is more reliable/secure/trust worthy than the Chinese brands). I could also keep using WiFi items until I change them since they work with Alexa and I could run them with Alexa Routines to combine things in HE+Smart Life together (yes this would be internet dependent still)
I've never used ZigBee before but read that it is way more friendly in pairing than zwave. So I'm hoping the Chinese products will work with HE. Thoughts?
If I go with HE and I get everything setup and working how I want. Can I stop any future updates from installing? I like the "if it ain't broke don't fix it" approach. And once it's working, I just wanna leave it and let it collect dust while it does its thing.
Now you may think why am I going to the HE? With my unreliable internet, it seems like the only choice out there as Echo is limited to just turning things on and off.