True, the ice cubes are perfect.....mind boggling....they stay solid and keep your drink colder longer. Love the shape and consistency in texture. I have to agree that the cubes are rather difficult to release....so I have been experimenting. I have found that when sitting at room temperature for a short while the cubes sweat just enough that given a little twist they will pop up and then can be easily removed. Any effort is worth the resulted perfect cube. I have 4 trays that seem not adequate....however they fill up my bin and truly fill up a glass with cubes to spare. So I gladly give it 5 stars!