Marketing will be interesting
The pixels do look like good phones, but I just can't see them making an impact unless they market them heavily. For a lot of people that don't know a great deal about phones, Android is basically Samsung.
I had a Nexus 4 for about 2 and a half years and it was an excellent phone, but most people had never heard of the Nexus brand. I've hardly seen any main news sites covering the Pixel in the way that the new iPhone or S series Samsung gets covered.