The WYZE products I own (4 V2, 12 Cam Pan, 1 Outdoor Cam, a Scale, and 2 Bands) are working great and I have had zero issues with them.
It isn’t just WYZE products that work great for me. I just sold 11 Amcrest IP cameras on eBay. Those worked great but required more fiddling to get them connected. Lots of unhappy people in those forums.
My home is also equipped with over 50 ZigBee and Z-Wave things, connected to a Hubitat Elevation hub. These are also working great. I read similar posts on other community forums lamenting how crappy XYZ products are, and I just sit there and bite my tongue and consider myself fortunate.
So here we have a person with over 75 things that can screw up, and none of them are temperamental… Nada. Zilch.
There are factors such as incorrect router setup, and interference from other devices on that spectrum that may be somewhat to blame.
The equipment the ISPs offer is what they can buy for the lowest price. Multiplied by tens of thousands, it is easy to understand why the ISPs don’t supply decent hardware.
The last time I expressed my positive feelings about WYZE products I was labeled a troll. I enjoy what a connected home is supposed to be.