I love this tri-temp, bottom load water cooler.  Buttons press easily and stop as soon as you release them, no extra dripping. The bottles are so easy to  replace, with a handy hanger for the bottle adapter when you take it out of the empty bottle.  The bottle adapter is well designed for a secure fit, which provides full drainage of water in the bottom of the 
bottle.  The hot water is plenty hot, and the cold is well chilled. The  flat top design comes in handy for placing multiple items that need water at the same time.  I absolutely love this water cooler!