Great ice cube tray, quite big and leakproof. The silicone lid seems interesting, but I don't think I would try puting it sideways when refilled since I would worry about pressure of water opening the lid.
It works just the way it says it will. No more spills or struggles to free the cubes from the tray. I use it to frozen the chicken broth and then each time I need to cook I will take three cubes.
I love anything from oxo. The plastic is thick and solid unlike the other brands looks cheap and thin. The silicone keep the liquid from spilling. I freeze chicken broth with it.