content: While I can't compare this product's effectiveness to that of other screen cleaners, as this is the first one I've ever used, this product works amazingly well and restored my LCD to its original glory.I bought this based on the other reviews, specifically mentioning the Powerbook, because my MacBook Pro screen was extremely dirty, with streaks on it that clearly annoyed during movie playback. It arrived, and voila, my MacBook Pro's screen looks factory new.The solution lets out a bit of a foamy soap when rubbed in, and it just works wonders. The only thing is, this product is quite expensive. Not surprising considering it's a "Monster" product.