I guess it's okay for both, as long as YOU like it. but for a man I think I wouldn't take very bright colors like fuchsia or shiny lizzard/croc. Matte lizzard/croc are nicer for men imo.
Depends if you like the dimensions and the hardware. My DH likes bright color - he uses an Hermes guerney in red (card case shaped like an L open - three compartments). But he carries cash in a money clip.