I'll be returning that split keyboard.

  It's  a  little  better  than a normal keyboard, yes. But there's many
  tiny annoying things. Just to name a few:

    -- The "F keys row" has been shifted to the left, there are no  gaps
       between  those  keys, and Escape has been moved far away from all
       other keys.

    -- The "B" key *must* be hit by the left  hand.  I  didn't  do  that
       before.  This  puts  a  lot more strain on my left hand because I
       really have to stretch it.

    -- I use a german layout, i.e. QWERTZ instead of the english QWERTY.
       As  a  result, "Z" is on the *right* half of the keyboard. With a
       split keyboard, I can no longer hit Ctrl+Z with one hand  on  the
       keyboard and the other hand on the mouse.

    -- There are no gaps around the cursor keys. Yes, I'm a Vim user but
       that doesn't mean that I *never* have to use the cursor keys.

    -- An LED stays on even when the computer is turned off.

  The list goes on. You get the idea. The keyboard is different  and  in
  some ways better, but it's not A HUGE RELIEF. It's not a revelation.

  Yes,  I could try other split keyboards. Maybe just the model I bought
  is flawed. There's another issue. A split keyboard  assumes  that  you
  usually  DO  NOT  straighten your wrists when using a normal keyboard.
  So, when using a split  keyboard,  you  can  finally  straighten  your
  wrists.  But  for  me, that's not the case. I DO straighten my wrists,
  even when using a normal keyboard. It's hard to explain, a photo would
  help  illustrating things. My right hand is angled at about 45 degree,
  but not only the hand, it's the whole arm. I wasn't even aware of this
  before buying the split keyboard ...

  At  the  end  of the day, I rather keep my Das Keyboard because of its
  high quality.