I have both of the bags. The Luco yes it is narrow- I think it is good for carrying a few notebooks or whatever . (I use these bags for school). The Luco, as you said you like it more, I do too, that is bc of the structure to it and the nice curves it makes on the sides. However, the Mezzo holds much much more, I use it when i need to carry a lot of books for school and as a carry on when i travel. I agree with bag lady about the bottom of the Mezzo, I was alwasy careful not to get mine dirty , but I have had it for some time and now the leather its darker. If you have doubts about the Luco being too small dont get it, go for the Mezzo.