Ruff and Tuff Hide and Treat Skittle

Has anyone used one of these? How robust did you find it?

http://www.petsathome.com/wcsstore/C...arge/32756.jpg

I looked at them in-store and decided they wouldn't withstand chomp-o-matic as I recall. The only treat dispenser toys that have lasted him are the black Kongs (bar one dud one that split), the purple dumbell chuckle toys P@H sell, and the big red plastic Kong Wobblers... anything else - an hour at best.