Have experience with both puppies and senior dogs and obviously all ages in between. Had a pug(named Pig!) for 14 years; From a puppy to his incontinent diaper days. Currently have a senior bulldog(Charlie-almost 13 years old now). Have patience and love for all dogs. Currently also walk for Wag, so Im already accustomed to going to strangers houses to walk and sit dogs of all shapes and sizes. A dogs happiness is just as important to me as it is to the dog owner! When I do walks/drop ins they always last longer than 30 minutes. If your dog likes the park I will bring them there. A drop in/walk for me usually lasts between 45-60 minutes(if you want your pup to go to a park, that is).