Hi Anis, yup that is correct! :)

When your end result is made up of mostly extruded shapes, it can be easier and faster to work more with solids throughout rather than doing things by one individual surface at a time.

That's due to that mechanism of doing a boolean between a solid and a curve which generates solid results...


When your end result is made up of more freeform surfaces (that may swoop around in multiple directions instead of curving only in one direction) and not so many extrusions, that's generally when you may need to use a more "one surface at a time" type method.


- Michael