The 2018 MacBook Pro has been my first upgrade since the early 2008 non-unibody.
It's no surprise to know that they are both very different keyboards and it was evident from the get-go. I prefer a more tactile feel and actually loved the early 2008 keyboard, I could type like a champ.
After a couple of months of heavy use of the new 2018 keyboard, I've obviously grown used to its feel, response and noise but the one thing that stands out is my spelling mistakes are through the roof. The keys are slightly further spaced apart so perhaps there's some more muscle memory to rework before it's as smooth as butter but I do find a large portion of mistakes are made by hitting a key on the way through to another. Something that a more mechanical keyboard takes in its stride but with the increased sensitivity of the butterfly mechanism, it's a regular occurrence.
Hands down, the biggest pain in the ass with the 2018 keyboard (and probably years before), is the way it drinks up your finger oils. After a days use it looks like a grubby kid has been all over it and it really ruins the detail and length Apple goes to, to maintain a beautiful looking product. I would say this is one of the biggest design flaws. Sure my old keyboard would get a little grubby after a few months and would develop a shine and worn-down letters, but this was over 10 years of almost every-day use. I now pack a microfibre cloth in my case to wipe it down every morning.
If this Mac and keyboard last me another 10 years as I intend it to (not hopeful), then I'd be a very happy camper regardless of these issues, the new mechanism, the noise etc. The material used needs to be re-assessed though. Along with the finish of the touch-bar.