I made gummies and they just pushed out. No sticking at all. The gummies in my picture were made with baby food and fruit juice. This mold made them the easiest thing to make ever. Update: I made hard candy in these, and they popped right out. No need to spray with oil.
In a slightly unusual use, we use these to make gel-based food cubes for our bearded dragon. However, regardless of what you are making in them, they are great little molds. They're small, mini cube sized sections, and work excellently for my needs. It's easy to pop the cubes out when they've set, and the mold washes up -very- easily. I'm happy with them, and glad that I purchased them.