I switched to it a year ago and I like it. The biggest draw for me is it gives me back control and ownership over my phone. It gives you actual and thorough control over what apps can do on your phone including Google's apps, which on other typical Android OS are being given all or most permissions with no ability for you to deny access to any of them.

To gain almost all the functionality of a regular Android OS you can install Google Play Services and run it sandboxed, which means it will only do what you allow it to do and access only what you will allow it to access, which for me is the bare minimum before things stop working too much for my tastes.

Besides Android auto for now, the only thing that won't work for me on it is my banking app, probably because of all the security checks involved in it. But I just use the browser-based online service to do my banking operations instead.

I think it's great, and have been daily driving it for I think almost 3 years now. With the addition of sandboxed Google Play services, there's little it can't handle.

I'm running it. Bank apps and Safety net things (like Pokemon Go) all work. Aside from Android Auto, Google Pay refuses to work.

So, there's no downsides.

Actually, Google Translate didn't play ball when I tried it. I miss that one.

From my experience, its overall good. Its basically stock android, meaning no google smart features and apps by default, with more control over apps and google services. But for caution, some apps may break. You will have to mess around with the app settings to fix them. Also some apps will not work such as the google wallet app due to the OS not being acknowledged as official by google.

In short, its a more security focused OS that may require more involvement in configuration.

Upsides: Everything just works, no google tracking, creating a google account is optional and its easy to setup

Downsides: You aren't able to automatically backup the internal storage of apps without a lot of work (external files such as photos and documents are fine though)

I've been using it for about 1.5 years, I would recommend using it if possible

Doesn't it only support Pixel phones?

Get a Pixel and give it a shot. If it doesn't work for you the Pixels have amazing support in the custom ROM community so you'll be able to find something you like for sure.

I just moved from a Samsung - migration was a lot of manual work for me. Whether it's worth it depends on how much the increased security and control are worth to you. They were to me - I haven't had any issues otherwise.

i, for one, only have good things to say about it, EXCEPT device support (which is not GOS's fault)

GrapheneOS is probably the best, most private and secure Android ROM out there. I can only recommend it.

The only real downside is that the developers are divas. Also, there's something to be said about the security of a Google manufactured device and thinking your custom firmware protects you from them, however really that's true of any device, and the security benefits of sandboxing and other features may outweigh this.