Our dogs absolutely love their doggie lawn! We put it in our house for those times when we aren't home to let them outside (a couple are older and can't always hold it) and the took right to it! No training time at all! We have five small dogs total, ages 3-15, both male and female, which is why we got the XL size. And they all use it as if the knew from the beginning exactly what it is for. We bought the fire hydrant too, which they definitely use. We're thrilled with it. Only wish we'd dine it sooner!