This might be good for a large dog but not for a small dog. My 11 lb yorkie had no interest in it. It is heavy and looks and feels uncomfortable for a dog to chew. He is usually excited to get any toy but not this.It’s VERY chew proof, and my little guy has chewed up tons of his toys. He really likes it, and the only thing that’s not my favorite, is that it takes some time to load it up with food. But overall, it’s great, and he chews on it a lot, with or without food.New puppyThe unit is hard to clean and treats get stuck in the slot. Dog is unable to get into the treat slot. Bad design of the toy.I have a German shepherd and an Australian Shepherd, this toy has held it's own after both of my full grown shepherds gave it a good chew. I'm impressed for the price. Would 10000% buy again.It took my guy about 5 times of chewing, playing and retrieving snacks from the center before it started to fall apart. It’s cool just not durable.My dog has not stopped playing with this!!!! We FINALLY found something that truly is chew-proof!!Held up to both of my pups.