This is the only ball head that I have experience with--I prefer three-axis pan-tilt heads myself like my French Gitzo PL5. However, this ball head appears to function as intended.
This ball head came to me by way of a tripod dolly that I won on eBay auction. The dolly is something that I want, this tripod ball head, not so much. I am starting the bidding out low, so As-Is. So, good luck. No camera plate included.