The lounge-like concept makes the kitchen stylish.
In a kitchen where only a portable cart or a small kitchen island is possible to be located, building a kitchen booth is much more preferable.
The first aspect that makes each of them different from each other is the style. The building of a booth may be inspired by the concept of lounge. I believe you can imagine it. As for it, the main focus is the seating, not the table. A tiny table that requires a narrow space is okay. On the other side, a kitchen island that functions as a dining table is considerably larger. In short, it is certainly less space-saving.