Summary: This is not an awful keyboard, so I dont want to trash it, but it is also not pocket money cheap so I want to be honest... The panel on the left hand over the batteries is supplied with replaceable coloured covers - these are loose fitting and frequently fall off - possibly because it is difficult to be sure how to remove it and I first tried to slide sideways - this was the wrong choice!
Summary: I have nearly worn out the backspace and delete keys with the abomination of a keyboard, even though I'm usually a reasonably good typist (40wpm several years ago). Because of the closely packed keys, the rounded edges, and (too) close proximity between the keyboard and keypad it gives the hands nowhere to feel for registration, so your muscle memory of the position of the keys is worthless in a lot of cases. It's also plasticky and very flexible.
Summary: This keyboard is compact but doesn't take long to get used to. It's portable but still far easier to use on my desk than my laptop keyboard. An important consideration which is not at first apparent is that it is Unifying. This means that further logitec products can be added to the one micro transceiver thus saving USB ports. I have just purchased a logitec unifying mouse and the two work in tandem flawlessly.
Summary: Needed a keyboard to use while on the couch the keyboard is super small and weighs pretty much nothing, perfect for sitting on my lap while typing. I'm only about 2 meters away from my PC so dont have any problems with it, the key's are really bouncy and feel great to use I would actually consider using it as a desktop replacement well worth the money.
Summary: This is a great keyboard, will take some time to get used to typing using it as some of the keys have been shortened as it is pretty compact. One thing that is annoying, is that there is no LED's for Caps Lock, Num Lock or Scroll Lock, so hard to know whether they are on or not. Other than that it, does have a full standard layout. So thumbs up there.
Summary: It is really good but the keys are very close together so it is easy to catch the next key to your keystroke. The batteries lasted 2 days when it said they would last 2 years, I replaced them with rechargeables 2 weeks and they are going strong so no hardship, it is light takes up the smallest desk space with a numeric pad. The extras are not many you have three keys Mute Sound Down and Sound up, these are the only ones I use any way so again no hardship.
Excerpt: Great keyboard to use with a laptop; Nice feel to the keyboard, and a compact profile for desk use with a mouse - that can be difficult with full-width keyboards with num pad, etc. But why, oh why, don't they include a black battery cover so the keyboard can look more professional in an office setup? Blue and red and light grey are nice, but virtually every other part of modern PC setups in an office is black. Other than that, great.
Summary: I was looking for a compact wireless keyboard and this one fit the bill perfectly. The battery cover thing is a bit strange but the keys are nice to type on (I touch type..learnt years ago on an old manual typwriter!!!) and are quite quiet too. There's no light for the numbers lock but when you press the button an icon appears on the screen to say whether it's on or off...I can live with that. Setting up was easy.