Top 3 Pros:

1. You have a daily driver OS that is so open you can install any app on it that can be sideloaded.

2. You have access to the Google Pixel camera, which, when paired with Open Camera or any open source camera app, can take photos in stunning detail without having to rely on Google's proprietary software.

3. The form factor of the A-series of Pixels, depending on your hand size, may be just the right fit for your hands. I have big hands and even I find the Pro/XL models to be a bit big for my tastes.

Top 3 Cons:

1. There are some banking, payment, etc. apps that won't even open without Google Play Services being installed. Fortunately, GrapheneOS has Sandboxed Google Play services that isolates Google Play services from the OS and allows only the necessary minimum utilities from Play Services for those apps to be useable.

2. Google's Tensor chip is...not good. Like it's Exynos bad. Fortunately, I believe the Pixel 6 series had the first and worst version of the chip. Each phone after has slowly improved the reliability of the modem so calls can be made in/outbound. Thankfully, GrapheneOS recently partnered with Motorola to allow future Motorola phones to be installed with GrapheneOS, so ideally their phones should have much better modems.

3. [insert third con I can't think of here]