I picked this up for $10 at Gamestop today. I've heard mixed things about the quality of the stick, but I wanted the spinner control and Astropop. It also came with codes for Time Pilot and Frogger, but I have both of those. I'll probably hold onto to them for use as a prize in an upcoming Sega-16 contest.
The control itself seems pretty decent. I haven't had the chance to check out the spinner in action, but the overall construction of the whole thing is pretty sound. I know I won't be using this for regular games, but it might actually be pretty useful for arcade titles. Even if it doesn't work out, I at least now have a third controller, and I'll just consider it as a bonus that came with Astropop (which is pretty cool)!