I've had two wireless keyboard/mouse combos in the past: one by Logitech and another by Microsoft. The Microsoft one I used to have was the Microsoft Office Wireless keyboard, which had phenomenal feel, fit, and finish. That one died before its time--all it took was a splash of coffee into it, and some of the keys shorted out perminantly. Thus, I was in the market for a replacement. The advertised spill-resistant keys and the simple, low-profile design, and the overall small(ish) size of the set attracted me to this product.
This keyboard wins points for me by having a small footprint, so it doesn't take too much room on my desk. I type all day, and my hands creep up, so I want a keyboard that doesn't require me to move my fingers up and down too much, and one that I can type accurately on. This model has a low action, and its keys are soft, springy, and pretty quiet. It feels a little mushy, especially compared to my MacBook's keyboard, but it is comfortable and accurate.
The keys gently slope down, so that the spacebar and lower arrow are tapered toward the bottom of the keyboard. This seems to be a trend in new keyboards. I don't like it that much, because it encourages your fingers to slip off the "chording keys" (ctrl, alt, super). My fingers don't slip off the control key as I thought they would, so I do not consider the key sloping a problem.
For a wireless keyboard, it is extremely important that the receiver pick up every keystroke I make. I've had older models that wouldn't pick up certain letters or key combinations. Happily, this keyboard suffers from none of those problems--at least at the 3 foot range from the receiver.
The mouse is very pedestrian. It has a hard, plastic shell, which feels pretty cheap. It is solid and fairly weighty (I'm used to smaller notebook sized Microsoft mice). It performs well, but is nothing special. It doesn't have the horizontal scroll wheel function that many Microsoft mice have now, but that functionality isn't terribly useful (even to an Excel jockey like me) so it isn't missed here. Still, it would be nice if the mouse had extra buttons, like Microsoft's typically excellent Intellimouse line.
I believe this keyboard/mouse combination would adequately replace a wired combo for any desktop use. The wireless adapter only takes up one USB port, which I thought was very nice. Unfortunately, the unit's range is very low. After I get 5-6 feet away from the receiver, the keyboard and mouse don't work. This is not a problem for me, but it would be if I wanted to use this set with a home theater.
Overall, I like this unit and I'm glad I have it. The keyboard is one of my favorites among all wireless keyboards I've used or tested, based mainly on its keys, action, and relatively compact size. The mouse and the wireless range are disappointing, however. I'm giving this unit 4 stars because it works well for basic computer use and comes at a reasonable price. 80-90% of computer users would be happy with this, I think.