Similar product, different experience: I tried their doorbell and found it to be way underpowered once I turned on ONVIF. Huge, expanding lag between real world and camera feed. 20fps max is very oof too, even if you are going to use their protocol and software. And it doesn't work with physical chime boxes, so you have to use their plug-in chime or botch a converter together yourself.
Was really excited (trying to replace a nest doorbell) and then so, so disappointed once I got it. Their other cams might be fine but oof, the experience put me off.
I've been subbed to the newsletter basically since it started a year+ ago. It's nice to get a glance at what's new/updated, but I especially use it for the "breaking changes" info as I have setup my system to basically be hands-off, if-i-get-hit-by-a-bus-it-keeps-going, except if the docker config change. I have watchtower set to run every week, a day after the newsletter, so I've got time to check the email and make changes if needed.
I thought "oh, I'll just be notified through github of new releases" and went through, setting that notification up, one by one, set to be put in a specific folder in my inbox so it's right there, no external stuff needed... I've never looked at that folder, except for "holy fuck there's a ton of mail in here" and then closing thunderbird, lol. So the newsletter is essential.