I get mine , be delighted . I do start to notice a lag at time , sometimes to a full stop . I would text my daughter upstairs to see if she be on she computer with another wireless Logitech keyboard . she be not . surprisingly enough it be happen around the same time\/s daily . I read the review . the receiver be plug into the back of my computer which be not all that far away , but not ` line of sight ' ... I start think and wonder why would they give you a ` long ' cord for the receiver . so I plug it in and hang it around the back of my monitor . I have not have much of a problem since with lag , or anything else other than operator difficulty in typing . I do ocasionally get two comma which be strange , I do not remember hit they twice but I be seriously not sell on the fact that it be the keyboard and not I . the difficulty in key press which I have read , be in my opinion\/experience you hand be in a slightly ` off ' possition on the keyboard . I work at home , so five day a week I be typing constantly for 10-16 hour a day . I also tend to squirm alot . depend on my position , which be rarely the ` proper typing position , ' all I need to do be slightly move the keyboard so it be better center to my seat position . if the key do not stick all the time , then to my mind it be more of a placement issue . thing I love about this keyboard be : I be able to disable the power button . I do not doubt that it be great for some , but I coud see myself accidentally hit it instead of the calculator . however more importantly , my 4 year old granddaughter , hit it , mainly because it be there . okay , she sit on my desk alot watch movie on my other monitor , I programe the media center to open up she folder of movie . she love it . the fact that I can program the other key to do whatever I want be definately a plus . I have use a lot of keyboard in my life , this be most definitely one of the better one . I do recently purchase a Logitech thumb trackball that attach very easily to the keyboard .