Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Frustrating, Inconsistent, Keyboard Lag

The frustrating part of this product is that when it works, it is not a bad product. It's when the connection issues start up that it becomes incredibly irritating. I have used this keyboard for over a year with only keyboard lag as the only problem, which in itself is minor. I had also used it on my Wii, Xbox 360 successfully. However, for the past year or so, the keyboard and mouse simply do not connect with any consistency. More often than not, the keyboard and receiver simply do not connect to one another. When it does connect, typing is impossible: the shuffle key is "t" for some reason and "q" key is "r". I simply hate this product now, which is a shame, because I use other Logitech products for years with great confidence, such as the Harmony remotes and webcams.I don't think there is a warranty on this product for the LX 710, but I do not think I will be buying another Logitech wireless keyboard or mouse for a very long time.