I really like this product. I was concerned, after reading some reviews on Butter Bells and 'on the counter' storage of butter.
I have not had any problems with it. It holds more than one stick of butter, spreading the butter at room temp, is so nice and easy. We tend to use less of it, than when we had to try and spread butter, cold from the fridge.
All I have to do is change the water every couple of days, and I try and keep it off the counter directly over the dishwasher, or too close to any appliances that give off heat.
To fill, I set the wrapped stick of butter out on the counter for a while, until it gets soft, and I smush in the softened butter with a spoon. Using the back of the spoon, I make a concave area in the middle and make sure the butter touches the sides of the crock.
It is great and everyone who sees it, wants one!
I recommend it!