Top critical review
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Fails the First Test
on 18 May 2014
Having had a positive experience of the K400r (with its smooth movement and firm judder-proof connection) I needed more of the same, but with more keys to better navigate my video editor. This offering costs 3 times as much, but is neither judder proof nor smooth. It failed my first test, that's to pick up an edge to a Windows frame and expand it, and if a touchpad can't do that its useless to me.
If the basic usability had been better I might have become accustomed to changes in control this keyboard encompasses, but since it failed the first test I will never know.
A huge let down after the positive experience with the much cheaper K400r.
At least Amazon was prompt and efficient with the refund.
Maybe I got a rogue that got through quality control, who knows.