This is a very good keyboard that seems targeted to teenage games; I was a teenage gamer 40 years ago, and if I was a teenager who had the desire and ability to remember all the keystrokes needed to control the options of this keyboard, I'd probably give it 5 stars.There is an included instruction booklet that describes everything, but I don't want to refer to an instruction booklet to change the volume via a keyboard. All of the functions, especially the lights, are nice, but I wish they were easier to control.The keys have a good feel, not the best, but better than mid-level keyboards I have used. The only real issue I have is that the keyboard is VERY LOUD. While I'm using this in a home office that is away from a bedroom, I think it could easily disturb someone in the next room if I was typing late at night.There is no numerical keypad. For me, this is fine as I needed a compact keyboard for a second computer on my desktop that is used a few times a day for one limited purpose that does not necessitate a numerical pad. If you need a numerical pad, this is not the keyboard for you - yet I've read reviews of this that complain it has no numerical pad. The manufacturer is not trying to hide this clear fact.