Oh GAWD no.
I don't use brushes of any kind, but just because I don't doesn't mean it doesn't work for others. I WILL say however, that of all the brushes out there the only one I'd consider trying is the denman you're considering...BUT if you have thicker hair, DON'T get the D3. I've heard about women with thicker curls ripping their hair out with it (I guess it's a smaller denman?) Try the D30-whatever one if you do get it