Some numbers, today I connected my phone at 19% with stock charger.
- 30 min charge: 19% to 56%
- 40 min charge: 19% to 67%
I don't think that's bad, it's definitely not FAST, nor regular. But considering all the issues the 6P had with batteries, I don't really want to charge my battery in less than one hour. (Specially now that the phone has at least 3 years of updates, I'd like to have 90% of battery life or more in 3 years)
I'll have to do another test, something like from 35% to 80% (this would be more real life, I only need a 2nd charge when I'm traveling in a city with a power bank, using Maps and Camera all the time).
Ultra fast charging and wireless charging are some of the features that I care less in the phone. I want some fast charging between 30% and 90%, but I don't require it to be extremely fast.
TL : DR: If you value an ultra fast charging over other things in a phone, definitely skip the Pixel 2.