Sadly A Flop!
I bought this for our cherished one as she already has the track which she has used a fair bit.
This however failed to appeal at to her all. We did our very best to leave it out for her, pour on the provided catnip, and even rubbed our own faces on the plastic in attempt to show her what to do. However, this was a waste of money and as it looked pretty ugly we have now put in the bin.