This is god damn evil, and addicting mind you!
The words aren't in logical sense though, so your brain has a WTF moment when the next word you have to type is not something that usually relates to the word you just typed. Your brain recognizes something is wrong, tries to make sense of it, and that loses you a few milliseconds. Yet when you are typing up anything normal, emails etc. your brain has learnt how to recognize words relevant to the words you write. This test breaks those rules, therefore not really showing what you are truly capable of.
I had that too many times, just looking at the word and stalling half a second cause it just ain't right
Edit: 37 wpm 184 keystrokes no wrong words, says I'm better than 56.28% of all users which you can imagine is utter crap, considering what you keyboard destroyers are all getting. Need to change my name now, keyboards must wish for me to be their owner