Nice post! As a user of the Oppo Find 7 which has VOOC charging, the forerunner to OnePlus DASH fast charging, I can say, there is no way I can be convinced to go back to the old-fashioned and very inconvenient procedure of waiting more than 30 minutes for a battery charge.
I agree that most companies collect data and a bit more research into the rumours will show that it is a storm in a teacup ;-) Go for it! These devices are way ahead of anything else.