Yeah, the question phrased in a way that it implied no alternative. As if “if blender can do the job” means that no other tools would be neccessary.
A better way would be: “Should I include blender in my toolbox?”
Personally, I use the right tool for me for the right job:
3DSMax: Simple non-organic geometry. No elaborate booleans.
ZBrush/MudBox: Organic modeling / sculpting
Modo: Complex geometry that involves nested booleans (in the future with MeshFusion 
)
WoldMachine: Landscape meshes (single mountains, etc…)
(I dont use blender because I cant stand the UI concept. :rolleyes:)