The faster they charge, the more nervious I get. My 2 n7's charged faster then any other phone I have owned, and look at how that ended up. I still don't see the need in almost all situations.
I have the pixel xl and have yet to run out of power. I have had a few instances when I forgot to plug the phone in and still had enou get power by the end of the second day ( with a conservative battery approach). I still don't own a car charger that's usb-c. I can use the adapter I got with the n7 but haven't yet. I have even used my phone as a GPS for 3 hours , with the screen on and running an audio book and still had 46% when I arrived.
If my phone had a small battery and I was a power user I may worry about how fast I can charge it. I know your not suppose to leave it plugged in but I don't keep phones more then a year so I plug it up every night and leave with 100%.
With my phone on, I get less then a minute a percent. Full charge in about and hour and 25 minutes or so. That's good for me. It charges faster when first plugged in and slower the closer to 100%. That me be real or inflated for effect.