Re: The most important feature to mention...
If they're doing one very dodgy thing, it's a prudent assumption that they're doing more. It's reports like yours that help inform my purchasing decisions. Many reviewers, like many consumers, don't care or have the time to care.
I've had one Samsung phone, and privacy and security concerns over what Samsung has done on that, with basic functionality tied needlessly to granting access to contacts, not taking no for an answer, background Samsung processes of unnannounced functionality that you can't uninstall or disable. etc, mean that I'm unlikely to buy another Samsung phone.
I won't buy Apple because of cost. Are there other good brands for those that want basic respect for privacy and security without paying through the nose, and without having to consider replacing the firmware?