Product review (2 stars): Not worth it!
Yes, it makes ice bullets. But overall it is not that great. On a normal 60F day, the ice melts immediately. When the ice tray is full, I remove the whole tray to place the cubes in the freezer. The tray is already dripping everywhere with melted ice. There seems to be no insulation at all. Then all this melty ice becomes one solid block in the freezer. It's really more trouble that it's worth and I'm probably going to get rid of this and go back to the conventional way.