Pros: Cat loves it, adjustable, washable, durable, fun
Cons: harder to open and close than it should be, not the best for small kibbles
This product was a great solution to kitty's habit of gulping down everything in sight and then immediately jumping up to try and get whatever I'm eating. The egg keeps him distracted and happy. Plus it gives him something to do while I'm at work. I couldn't be happier with it!
However, it doesn't get full stars because: 1. it's a tricky to twist shut (especially with hungry cat in your face), 2. it doesn't provide a huge challenge, even on the hardest setting (but that might just be my cat), and 3. the manufacture recommends using it with catnip when even a cursory glance at the toy would tell you that's a terrible idea unless you really enjoy cleaning up catnip.