Transition question: keyboard & op system requirements

Hey there, maybe an odd question: I'm a writer looking to transition out of PCs and get my first macbook. I'm pretty impressed by the build & quality/beauty/etc of the macbook (& pros), but have some concerns about the keyboard. The keys are spaced out & feel a bit soft & a quick typing test at the store had me tripping/missing several letters - as I'm a writer & used to typing a lot & at very fast speeds, it does make me wonder if it would work for my literary tasks. Does anyone have similar observations/concerns? Does one get used to the spacing and soft feedback of the keys (causing missed letters/wrong letters)? Would my error rate go down?

Also, as my work is on MS Word for Windows, should I assume that as long as I get the Mac MS Word version, they would be easily read-transitioned over?

Thank you for your help!
L.