I am super impressed with how quickly my puppy responds to the clicker. I can accidentally click and it grabs her attention immediately. This is helpful at times when she has a distraction off-lead. My puppy is 9 weeks old and was raised by a breeder who uses Puppy Culture. I am so fortunate for this method. Also, I highly recommend the wrist band because it allows the clumsy person, like myself, to easily adapt to carrying it while fumbling for treats and with a leash.