Hello guys. I have bought Dell 21.5 LED monitor in my house and believe me it is best HD monitor I have till date.Monitor has very high reslotion pixel graphics which makes picture quality very clear and fully high definition. It also does not give irritation to eyes like LCD monitors.It also have some button to adjust screen and power off timer is also good. The monitor comes with a giude CD. Which explains working of monitor and some options to do if you get error. I havent really connect to customer service bcoz I havent had any issue till date. I am really satisfied with it.