We have both the Stevie (large) & Olympia (medium) octopus toys and our collie loves both. The medium is better for little catch & fetch games (she like to toss her toys about!) but the large one works better for proper tug games and it's big enough for her to bodyslam! They are holding up impressively well - no tears or rips despite many games of tug & chewing. She's not hugely destructive but she will chew & pull stuffing out of plush toys and so far she hasn't been able to get into these. We have Stevie about 4 months and Olympia over 6 and they are still in good condition so I would probably buy again.