Hi... we got our leather living room sets.. twice.. because we have Scottish Terriers who have run of the house.. including the furniture. They have never damaged the leather.. ever. We do wipe down the furniture with leather cleaner wipes about twice a month. The first set of furniture was Navy with a smooth texture finish... .no damage ... The second set, expresso with textured finish... again no damage.
We do trim the dogs nails but they are not super short... and our dogs have been between 12 and 25 pounds... and they are a lively bunch.