i am sure it is a very good lens. But it is not limited to shot macro and portrait. Look at the pro..how they would use this lens.
http://www.olympus-esystem.jp/gallery_e/wantuch_w/
1st pic from the left (bottom row), 3rd pic from the left (upper row)
http://www.olympus-esystem.jp/gallery_e/wantuch_w/
1st pic from the left (bottom row), 3rd pic from the left (upper row)