It seems its the norm for new model Macs, tons of flex in the keyboard. My mac from 2011 has zero flex even if I press on it with one finger and put most of my body weight on. I was in Bestbuy and the demos had horrible flex from even just regular typing. When I pounded on it, it flexed like a cheap $300 laptop made of plastic. Unnaceptable IMO, but maybe some prefer the flex?