I got to play the Ozark Mountain courses over the weekend, there are several bullseyes on the property. They caught dead center putts just as well as a full basket, but they definitely added some pucker factor knowing that they wouldn't catch anything much off center. I could see it being a great practice bucket and it was a fun feature on the course IMO.
I just ordered 10 Wizards and a Bullseye. I'm going to practice putting to it in my basement all winter. I can easily get out to 20 feet and probably close to 30 if I clear some stuff out of the way.