Entertaining for both the dog and us.
Before we got the memory trainer, our Border Collie pup thought she was part Labrador when it came to meal times. You put her food down and it will be gone a little after removing your hand. Now that we have the memory trainer she gets part of her dinner in a bowl and the rest goes into the machine, mealtimes take a bit longer now and she has fun at the same time.
when she was 14 weeks old, at first she would not go anywhere near the touch sensor, she is wary of sounds, but a bit of coaxing and the cat enjoying himself touching the sensor and getting dog food (his favorite) was just too much for her. After that it took 2 minutes to work it out and she was off, touch and eat. Now the sensor is at one end of the room and the dispenser at the other. She runs back and forth between them and is always disappointed when the food has gone. She did have the advantage of being trained to touch which helped her figure it out.