I already had a similar casserole 8L but it was too big for most dishes I cooked. So I decided to buy a smaller one that would take less space and would be more practical! Like the casserole 8L, this one is highly effective, easy to use, reliable and easy to clean. Moreover she really is more compact. I was not interested in casseroles more gadget that one can find as Clipso etc. because 1) it is much more expensive and 2) really more likely to have problems. In these cases I trust in simplicity, my mother who has a similar 20! I am very glad I bought this product and I recommend it to everyone!