I've been mostly pleased with the Pixel's camera. It's very *good*. But after a week using it alongside my S7 and iPhone 7, I'd still rather have either of those in my pocket as my day to day shooter. The Pixel tends to take dimmer/darker shots because it's trying so hard to balance out dynamic range. This can make for some really great shots, but it can also really underexpose if there's a focal point (like, I don't know, a person?) in the shot you're taking. The Pixel also struggles with auto-focus, or its auto-focus simply isn't very intelligent.
Example, kids within a couple of feet of me... 5 shots with the Pixel, each one of them came out underexposed and with their faces blurry, even when I tried to get it to re-focus. My iPhone 7 got them in one shot and properly exposed their faces. In those shots, the Pixel's shots looked great in the background of the photo, but the focus of the pictures were not well-handled. The iPhone 7's shot overexposed the background a bit, but it nailed the focus of the pictures the first time.
It's a very good camera, but I think it's still a step below the top flagships from Samsung and Apple right now, when taking into account all aspects of the cameras.