These silicone molds are super easy to use and clean after. They are on the small side however its just enough for a kids popscicle. I put fresh blueberries and strawberries in mine blended with non fat plain yogurt and they turned out pretty yummy with the chunks of fruit in it but next round I make, I think I will try to put ingredients in a blender to make it smoother and easier to fill in the molds. A hint is to make sure the plastic sticks go into the groves at end of mold, otherwise if you put too much in the mold, it will drip thru that hole. I also put a paper plate under mine in the freezer to catch any that might leak out. Its so much healthier to make them yourself verses store bought thst is full of sugar. I use a small brush to get into the little grooves of the mold so it makes it super simple to clean and just leave to air dry. You dont need alot of room in the freezer to stack them. I highly recommend this product!