I have one, and I love mine. Yes, it does remove light amounts of dead grass and clumps if there are any. I've used it several times to clean up other people's messes. They cut, end up with some clumps or heavy spread clippings, then they leave them lay and before you know it, the rain gets them, and they are too far down for the mower to shuffle back up. When this rake REALLY shines is during Spring cleanup for shuffling up matted leaves and layed over grass. Yes, the grass itself would be alright anyway, but when you give it a good combing out earlier on, the air and light get to it, and promotes earlier greening. People love this, because everybody gets Spring fever, and wants their place done. Well, when you quote them a price to give the entire lawn a "rakeover", they go for it. Then, you put this thing on their lawn, run it as fast as your mower will go, then windrow all the stuf up (or bag), and you are done in no time. Fast, easy money, and the people are getting what they are paying for. You're not just taking them for a ride. I also have used mine for lawn renovation when the turf is completely dead (grub damage). This works like a charm, both for raking the slag off, AND for stirring in the seed after it's spread.