I also have a 2018 MBP from work and the keyboard is shit. Within 3 weeks it was doubletyping and putting random .'s everywhere.
I was days away from buying the top end Vaio and then I heard the news about the new MBP and decided to go for the MBP instead.
For anyone else having this problem, the new MBPs ship with the same autocorrect "feature" that comes on iOS where when you press spacebar twice (or, I should say, your keyboard thinks you pressed the spacebar twice) it inserts a period automatically. In addition, newer MBPs automatically capitalize and autocorrect spelling, like on mobile.
You can disable this. I did, and, I don't think any desktop computer should be telling me how to type. I don't need help when I have a full keyboard. System Prefs > Keyboard > Text.
I agree.. seems like Apple derped there. The auto-correct was because typing on a smartphone is a lot harder, but some genius must've thought "Hey, why don't we use this software on our desktops too?". Also holding down a hardware key to get to accented characters, oh fuck, how is that ergonomic?
I think it's a good addition for when you very occasionally need to type a particular accented character, since you can visually see the options. Of course if you are going to type it a lot you're better off learning the Option key combo.
For instance I would have to look up how to directly type "ł" since I rarely need to type a Polish name... but I can get it in 1 second by holding down "l". Very handy!
What's more, you can't even type ł on the standard Apple layout. Sure, you could use the Apple Extended keyboard layout that handles more characters than what's used in Western Europe, but you'll lose ≈ (irritatingly, the Extended layout isn't a strict superset of the standard layout). I type ≈ more often than I type ł or ć or ō, so the hold-key behavior is a handy addition.
You should be able to get the keyboard replaced for free, I just haven't found the time yet to go to an Apple store, but you shouldn't need to pay money and upgrade to fix this issue.
I use it on my work computer (2018 15" MBP). Does a very good job of detecting these double key presses and mitigating them transparently.
I don't have one, but I just can't fathom how you can't make use of it? I'm looking forward to using it for all kinds of things -- notifications, quick glance information, context aware keys, and more.