I know I’m not really who’s being asked, but as an American, I can’t help but butt in anyway.

As an American with a very nonstandard accent who had to practice to be able to sometimes eke out an approximation of an American accent, a ‘standard’ Midwestern accent is like talking out out of the side of your mouth, rounding out all the vowels while trying to hit every consonant with an aluminum baseball bat, especially the ‘s’ sound.