Summary: I popped off some keys, and lo and behold, they used the famed Cherry Blue keyswitches. Fantastic. Feels great, and has that love-it-or-hate-it retro IBM boxy look. The additional keys (tab and backspace especially) are great, and a thoughtful addition. The Cherry Blue's are extremely reliable, so I'm not expecting any reliability problems. Only complaint is that it only has rubber feet on the front, not back, so it slides around unless you add your own.
Excellent touch and the four "extra" keys are perfect.
11 January 2013
Summary: Very well built, tough product that travels well. Touch 10 keyers will love it. Responsive keys and great feel. You can process one handed with the "extra" keys on top. The tab alone is worth the purchase price. Some may want a wireless unit, but I have had better luck with the corded one. Never a lag and it can keep up.
Summary: Pros: The build quality of this numberpad seems decent. It's not a membrane keypad. Cons: The biggest problem with this numberpad is that the "/" key is above the 9 key rather than the 8 key, which pushes the "*" key over where the "-" key is on any normal computer keypad. The "-" is to the right of the 9 key. While I suppose I could adjust to the layout, I actually don't like it.
Summary: This keypad works great! I plugged it in and it worked without any problems. The Num Lock does not cause the keyboard (a Kinesis Freestyle that doesn't have a keypad) to go into num lock mode. It also work without a problem with my ConnectPro KVM Switch. The extra keys are real handy when I am running Sibelius - a program that remaps the keypad to enter notes. The feel of the keys are good too. The keys are large enough that it is easy to enter numbers by feel.