Since the announcement of the 2018 notebooks and my temptation to upgrade, I have tried extensively my old 2011 15" and my 2017 keyboard on the 2016 MBP. Whenever I come back to the new notebook, I feel a firmer typing experience that immediately delights and then falls to neutral. Now, same goes for the old!

But with the old, I am now hitting between keys as well, so clearly the larger keys in the new keyboard make for a better typing experience with lesser errors.
That said, I can see the logic in the 2018 membrane being more tactile and bouncing back faster, and I think that this might make for a more accurate typing experience for the issues I have with this keyboard (sometimes) that the keys feel like they did not spring back, creating a doubt if they got pressed, or actually creating an error.
The new notebooks are not out in the stores at my place, waiting to see. However, again, just for this, spending $1800 is practically a blasphemy and sort of pure criminal.