The good: -the baby-room-unit has a night light you can control from the parent unit -the baby-room-unit plays a preset number of tunes, which you can control from the parent unit. -the parent unit has a flash light built into it. -it works fine in across floors The bad The parent units on our old AngelCare displayed the temperature in big, lit, digits. You could read that from across the room, day or night. Quite the opposite with this product: the screen is tiny and back-lit only seconds after you press a button. Wait, it gets worse. The sensor in the baby-room-unit must be picking up heat from other components inside the unit. I keep an old fashion room thermometer right next to the baby unit. When I turn on the unit, it shows up the same temperature as my thermometer. A couple of hours later it show up 4 degrees higher. Very disappointing, we only bought this product cause it gave temperature readings.