i give it a 3 star because : it need total darkness to be clear . a bit inconvenient for that reason : all what i need it for be to present in class usually during morning time therefore didnt really help I . also , for a artist i need that sharpness when present text or image . it be clear but wasnt as sharp as i hope for . however , I love that I have it , its good for present and personal use -lrb- large screen movie night -rrb- - maybe . however , my rating be base on how this device meet my own requirement \/ expectation . its about 50 '' wide . you need to buy the hook-up to what you want to hook it up to . but it be pretty easy to do so & find .