Disclaimer: I work at Google but have nothing to do with any hardware team.

I bought a Nexus 6P from the Google store and had some issues. Out of warranty they replaced it with a new Nexus 6P. When that failed as well, they replaced the phone with a brand new Pixel XL. Each of these replacements was sent via overnight shipping at no cost to me.

I wouldn't call this a great experience because I wish the original phone never had the issue, but I can't ask for more from support.