This was included with my KA Pro 5 Plus mixer I purchased before Christmas in a local store. Unfortunately, the whip itself was not in the package.  Customer service sent me one. I finally got around to using it and it won't fit onto the mixer.  It's as if the hole in the whip attachment is a tiny bit too small.  It looks the same as my other beaters but it will not slide onto the mixer.  I did get good service when I contacted KA about it missing from the package (since I had purchased at a store that doesn't take returns).    I don't know whether this would end up working better at whipping things than my smaller mixer, so I don't know whether it is worth the money to buy separately.    I had read some reviews from people saying it still doesn't whip up cream and meringue well, but if I could try it I might improve my review and even say I recommend it to friends.