I friggin hate them. I'm using one right now, and typing like this is no problem, but every once in a while the Copy Paste feature gives up on me. I CTRL C just to have a C replace the text I was going to copy, or get an older clipboard item when CTRL V:ing the cut. I have to hit the keys hard sometimes, and repeat the proceedure a few times before the computer understands whatever message the keyboard is trying to convey. A low battery sign blinks on the upper right side of the screen every once in a while and when used daily the batteries run out ever 4-5 months, at least. So why don't we just have cables like we used to back in the good old days? Sure, when I first got this computer I sat on the bed behind the chair I currently reside in while watching movies, tapping the play and pause buttons with a gaping jaw thinking something like "Woah, magic", but since then, they keyboard has pretty much been stuck on the same spot and the chordless feature doesn't do else than waste batteries and complicate things for me. Same thing with the chordless mouse, but that one gave up on me a couple of years back, so fortunately I'm back to using a traditional chorded one. And it works. It hasn't needed and battery changes or caused me any momentary irritation since I bought it. Chords & cables FTW.