I have been frustrated with HomeKit on a few things. I could never get my LiftMaster MyQ Home Bridge for my wall mounted garage door opener to work. I spend so many hours trying. Looking up tips on the internet, how-tos on YouTube. Nothing.
Lately, it has been about cameras. I bought my single family home over a year ago, and wanted to get a HomeKit camera set up for outside, but the options are very limited.
I am close to jumping ship myself.
To be fair, my Weiser Premis Touchscreen Smart Lock by Kwikset has been flawless with HomeKit. I just wished there were more outdoor camera options.
I notice a lot of inconsistencies with Siri over the years, and it really gets frustrated. Using Siri with CarPlay for directions is risky in my experience. You never know where you will end up.