Easy to use, just open add water and close. Flip up sides to make the bowl. Turn the button to add water and your good to go.
If water level in the bottle is low just give it a little squeeze and it fills the bowl.
Once Jac finished drinking we just turned tha handle again and let the water drain back into the bottle ready to be used later.
We've used on a couple of day trips in the car so far and its been great. Because the weather has been really hot I've been adding some ice in the bottle with the water and popping it in the freezer for a couple of hours before which works really well and keeps the water nice and cool.
So far really pleased with it and can see us getting another as a spare to keep in the car permanently.