I think I've just used the worst keyboard that I've ever had the pleasure of using. Basically I was doing a mock English exam on an Acer Chromebook 14, I thought it would be okay but how wrong was I... The keyboard is so flat, so squashed and so devoid of feedback/feeling that 99% of the sentences you type have to be re-typed multiple times to get the correct spellings. This not only dramatically reduces the WPM but also reduces confidence, I found that because I was getting so mad at the keyboard I couldn't think of things to say to explain myself. 

Honestly, how can a keyboard be this bad?