Actually Works!! - very well!
I bought this with a very large dose of scepticism, as I am always on the lookout for a better solution. However, I am amazed to say that it works REALLY well. The design is simple, with no moving parts to break and really does exactly as it says - no scooping ever again. I will say that we use very fine clumping litter, and if you did not use that type of litter i cannot see how it would work. Also, would not want to fill it up too deep. So this is essential, also the action of rolling it needs to be slow and smooth, cannot just tip it over fast as expect it to work as well as gently tilting it over. However, with all this in mind, it does take only 10-15 seconds now to clean a cat litter tray. Which I can now do with no effort twice daily (cats are very pleased) instead of the dreaded scooping task I dreaded!