Yes , it is a false economy to buy clippers meant for humans, I tried that and they packed up after two goes! The clippers I recommend though are very good, they are meant for dogs, and they clip as well as the Oster did. Dylan has a profuse coat, they tackle it with no problem. If your girl has a profuse coat on the body, if you give her a bath and get a lot of the loose hair out with a rubber band on a comb, so that the thickness is reduced, then I would think these would be fine. I would scissor all the surplus hair off the legs etc and then use the clippers. Once you get on top of the coat it is easier to keep it neat and tidy. I have had them for nearly eighteen months, he has a trim every couple of months, and I would feel confident using them all over if I wanted to. There is only the one blade, but it does the job, and can be added to if required.
They have worked well for me, and the other reviews of them are good.
Lesley and Dylan