I've had mine for a week now, and have been able to use it alongside my late-2014 rMBP, which has been a solid workhorse. I'm starting to notice very subtle preferences for the 2017 model creeping in - after an hour of typing, for example, going back to the old keyboard feels really, really inefficient and antiquated, and my typing rate is lower than on the new rMBP. I also really enjoy the Touchbar - it hasn't been…
You don't address the point of the article which is battery life though.
One thing I do really like though, is being able to charge from either side of the laptop. This actually improves things for me when in 'hacking in bed mode', since the previous left-sided configuration was inconvenient .. and is now not an issue.