I own both the x230 and the x395 (which is, externally, almost the same as the x13) and I can definitely feel a difference when typing on the much more comfortable x230.
It's mainly due to two factors: 1) thanks to having a very small touchpad, the keyboard is closer to the edge and I feel much less strain on the lower part of the arm, near my wrists, which becomes more apparent after long coding sessions; and 2) the key travel is much longer and typing feels "better" (I make far less mistakes).
Also, because the x395 is almost half the thickness, they could not fit a bigger battery (which is definitely my main complaint on these newer machines).
Don't get me wrong, the "X" series is great and I will probably get the latest version when I need a replacement *but* I'm sad they make these sacrifices in the name of "design".
It's mainly due to two factors: 1) thanks to having a very small touchpad, the keyboard is closer to the edge and I feel much less strain on the lower part of the arm, near my wrists, which becomes more apparent after long coding sessions; and 2) the key travel is much longer and typing feels "better" (I make far less mistakes).
Also, because the x395 is almost half the thickness, they could not fit a bigger battery (which is definitely my main complaint on these newer machines).
Don't get me wrong, the "X" series is great and I will probably get the latest version when I need a replacement *but* I'm sad they make these sacrifices in the name of "design".