“Difficult to refill & doesn't last”

“This is indeed solid and will last forever. You slide the treat into a channel. The dog then chews the available treat leaving the remains stuck in the channel. ---1) The problem is getting the remains out. The toy has this little device you are supposed to use, but they need to give you a pair of vice grips too. The only way to get the leftovers out without scratching up your hands on the sharp edges of the toy (created by the dog chewing on it) is to soak it in warm water for a bit. Then it slides right out. ---2) While this is easily solved with the hot water, you will discover that after 2 or 3 uses, you can no longer get treats into the channels because your dog has chewed the edges up. ---3) Finally, it really doesn't last any longer than anything else. The dogs quickly chew up what they can reach, fiddle for a bit trying to get the rest out and then decide it isn't worth the effort. My dogs will go through a fully loaded one about 5 minutes. On the upside, they do like the jerky treats it comes with.”