Is it really as good as Google Camera at computational photography; noise reduction, night mode, deblurring, stacking, etc.? That would be very impressive.
Depends on specific purpose and values. And it's a simple installation away from empirical validation.
Edit: one feature I'm fond of, when posting images on the Internet, is disabling exif data. I don't always want to put my coordinates on the Internet.
No. It actually kinda sucks.
Its the same way that the Pinephone is "usable" but really, it sucks.