I use those clippers on anything that walks through the grooming salon’s doors. Everything from Newfoundlands to my poodles. I use them on several doodles a week. They’ll work on any dog. The blade drive needs to be replaced periodically (once or twice a year at home\once a month at work) as with any clippers, but its a $5 easily replaced part (if you can operate a screw driver and have 5 mins, you can do it). They’re not cheap, but they’re heavy duty enough that if you’re not abusive, they should last the lifetime of your dog. In the salon, we get 3-5 years out of them before burning out the motor. Figure though 5 days a week, 7-8 dogs a day.