First of all, these cups are absolutely adorable. I love the neutral, modern design.They look like they came from a trendy coffee shop. They work well for everyone in my family. Even my picky husband likes them. They are perfect for on the go when i dont want to drag around a dirty coffee cup. These are quality cups. They are thick and sturdy. I have tried others that just get flimsy with hot coffee. The lids fit tightly and are very secure. No spills! I love that the lids lock in place and can be reclosed. The insulation sleeves work well and don't slide down like so many other I have tried. These cups are a great value and and the perfect size. Plenty of room for my creamer. I will definitely buy these again. I highly recommend them.