I agree with a lot of what was said. I am a bit invested in Apple HomeKit, and honestly, as I get more devices, I am less impressed as things are quicker to fail and overall the experience is more disappointing.
I have a decent size environment, 1x HomePod, 2x HomePod Mini, 1x Doorbell, 1x indoor camera, 1x smart fan with light, 2x dimmers, 4x light switches, 4x smart plugs, 1x garage door, 1x thermostat.
My idea of the HomeKit is that I woundnt need any 3rd party apps to manage my home kit devices. This is far from truth and the first area where the HomeApp and HomeKit fail - limited functionality. For instance, why I can't program my thermostat from the HomeApp, or why I can have separate scenes per room? I had to return the Nanoleaf bulbs cause I was soo annoyed by that limitation. Next limited notifications - for instance, why I can't have garage 'door open" reminder from HomeApp; instead, I am forced to use the vendor's app for that?
Overall my biggest gripe is limited device availability or lack of the devices. My house was due for a new smoke/carbon sensors. Well, there is only one vendor/model available (at least in the US). Even though the ratings are terrible, I purchased it cause I kept telling myself that this can't be true. Well, it was true, that CO2 sensor I got was awful, and there was nothing smart about it, so I returned it. So no smart smoke sensor for me. Next example, smart fans, again, there is literally one, perhaps two available. Doorbells, garage door openers are other categories with no real choices. I am stuck with a doorbell that keeps rebooting because of the overheating problems (design flaw). My next area of interest are smart locks - where is Baldwin's product, for instance? I don't want some cheap lock. I wonder how long we will need to wait for a compatible Apple Home Key lock?