We have been using K9 walkers since our puppy 4 months old. We were worried to leave our puppy at home while we went to work and we also wanted tire him out! The K9 Walkers staff came to our home to see what we needed and have been checking in with our changing needs as Remi has grown up. Couldn't be happier with the communication we have received and friendliness of their staff. Remi gets so excited to see them also.