Ok, I have a 20 week old standard labradoodle, so quite a large lass. We bought the medium having looked at the manufacturer's description and guidance on size. It's HUGE. That's absolutely NOT a problem - we loved the size. Good value for money, we thought. And it's very strong and durable. The main problem, where my dog is concerned, is that it rocks, slides, and tumbles every which way when she tries to settle down to chew it. It doesn't keep still long enough - and she gives up very soon. She prefers to chew the legs of our wooden chair as they remain in place and not try to escape. And I wonder if it might be too hard for her still - it is really seriously very hard. She's quite a chewer and polishes off rice bones in a matter of minutes, gnaws through the legs of our chairs (one has to go soon or it will collapse one day) So she has roughen out the surface but not really a dent - that could be a good thing from one point of view - it sure is durable! Hence the three stars as it doesn't seem to interest my dog that much. Even with the bacon flavour it supposedly possesses - I can't tell and I'm not about to do a taste test myself. Update - puppy is now suddenly showing signs of liking this! She's managed to hold it in place by pressing her paws down onto it, and pushing it against a wall - and she will gnaw at it for a good 10 mins or so.
