Likely won't be an issue for you, but these new phones use the Nougat version of the AndroidOS and that is annoying coming off their previous version because of how it compiles APKs on the fly which essentially removes the ability to run Xposed (can run YouTube Adblock, background play, various power saving tools, etc).
But specific to the Pixel 2, it won't have a headphone jack. If that is a consideration point for you.