Here are some initial thoughts:
The devices look very similar to last year's Pixel 2 and Pixel 2 XL, though the Pixel 3 XL has a notch, sort of like the iPhone XS. The design is vastly improved, though. While the Pixel 2 and Pixel 2 XL felt cheap, the new models have a more premium quality thanks to the glass back panels. I also like how the white and pink versions have a different accent color for the power button, which is unique to Pixel phones.