The amazon link does post the dimensions of the chicklet keyboard. It's 1.2 cm longer than the edge. I didn't pay attention to the width, since I just wanted to know the length of the keyboard compared to the edge. But you can check the link for the dimensions. Sorry, can't help you with usability comparisons. I did just order the chicklet keyboard today to replace the huge Acer one I'm currently traveling with. (Whatever was lying around the house.). I'm looking forward to one that will fit in the Case Logic case I just ordered.