I received this product as a gift and I find it really helpful though it took me a while to get into the habit of remembering to use it. It's great for cutting down on messes of both dry and wet ingredients and for adding ingredients while still mixing. It's also great if you accidentally turn it up on high after putting in a cup of flour or liquid! I gave this product a 7 though, because I feel that it would be better if it fit more snugly. It tends to move around the bowl more than I'd like or kind of slips out of place, I think this allows it to leak more than it would if it fit a bit tighter. I don't feel it's a product that's necessary to use all the time, but when it's great when making a large batch of bread dough or when mixing up butter cream frosting! It stores easily in it's position of sitting on top of the bowl. I'm not sure what the package says, but I've washed mine both in the sink and in the dishwasher and it's easy clean up either way. All in all a great product!