I'll share some pictures I took today after first opening up the package.
Just like some reviews have pointed out, the fingerprint unlocking is REALLY fast. Can't even see the lockscreen. I'm still getting used to the fingerprint position on the back. I never liked it on the LG G series. I'm sure I'll get used to it.
The phone feels almost exactly the same as the white Nexus 5 from 2013. Slightly matte feeling and a bit slippery. The mint Ringke case is also slippery so I've swapped it out already for the Ringle Smoke Black Clear Fusion case.
Even the button presses of the Power and Vol buttons are eerily similar to the old N5. It doesn't feel as solid as clicking on metal buttons like on the S6 Edge.
It would've been nice if Google instead introduced a Nexus 5P instead and charged a bit more. On the bright side, I have a feeling it will be super easy to swap out the battery in the future as it was on the old N5.
There have already been two updates on the phone. Right now, I'm on the latest MDB08I version.
I'm still playing around with it but so far it's good. Fast, smooth, and easy to use. I've already unlocked the bootloader and may flash TWRP when good custom ROMs come out. In the meanwhile, it'll be just Novalauncher and Root.