I saw one review on this site for this site that was totally bogus, so I just wanted to share my experience. I purchased this item about a year ago. It took some getting use to on the keyboard because I've always just had traditional keyboards, but It works great. It also works fantastic for gaming or work. The best part is the mouse. I use to get carpal tunnel in my hands which made it very hard to do my work as a graphic designer. But this mouse has made my life a lot better. I no longer have pain while working. The batteries also seem to last a long time. I saw some people complaining about the separate batteries for the keyboard, mouse and number pad but in reality they hardly ever need to be changed. Just to note, I use to be a big ******** fan, but lately have not been too happy with my products so I decided to go the Microsoft route and I wouldn't trade this product for anything.