This is a great idea and I enjoy using it. The only downfall is that the lid doesn't seal tightly on the base and therefor the milk can leak out somewhat if you aren't careful. It also has to be placed on a completely flat surface in the freezer because otherwise part of the milk freezes to the lid. I still use it regularly; I just make sure to carry it carefully from the counter to the freezer. (Posted on 12/22/10)

I use these trays exclusively for freezing my breastmilk. I like the flexibility of having 1 oz sticks of milk. The plastic trays are BPA free and easy to clean. HOWEVER, there are some serious design flaws: the biggest problem is that the tray lids don't fit tightly, so milk is easily spilled. I use Dr. brown's bottles and find I can fit four sticks in without starting to break them. More than that and I have to break them to fit them in. (Posted on 6/23/10)

I was very excited to receive these milk trays. It just makes sense to be able to chose the amount of milk you want to thaw each feeding verses only being able to thaw the size bag you froze previously. And putting all of one day's milk into one freezer bag seemed more organized and much cheaper than using expensive breast milk bags. However, it didn't work for me. Any slight angle to your freezer causes the shape to be slightly askew. The lid is not tight, so one of my trays even leaked milk out. And I had difficulty getting the cubes out. I had to let them thaw on the counter longer than I felt comfortable in order to be able to pop the cubes out. There was too much milk loss for me to be happy with these trays (Posted on 11/6/09)

These trays are great! I hated that whenever I pumped breastmilk before, so much of it went to waste because I would freeze 5 oz at a time and it didn't always get used up in one feeding. The 1 oz sticks are so convenient and there is much less waste. I did not have any problems with the trays melting becoming warped. I wash all my plastic by hand. I don't have any complaints at all. (Posted on 11/6/09)