Depends which price it's a third of!
But in my experience, I wouldn't bother. If you have an Android or iOS device then there are much better alternatives in the Squeeze Commander & iPeng apps. I had a Controller & found it unreliable & a general PITA to use. The screen is too small & the promised playback feature was only ever reasonably implemented in one software release, & promptly broken again in all subsequent releases.
Even if you don't already own a suitable device, I'd advise buying one over purchasing a Controller.