easy install unlike the big typhoon which requires mobo removal and the installation of a metal backplate.
zalman's don't always install easy either, it depends on motherboard. the big typhoon and cnps9500 are close i performance. generally the big typhoon wins but not always, it depends on how the airflow of your case is set up. the big typhoon is also cheaper. i remember 003 reporting a HSF that outperforms these two but can't remember its name.
note: bear with me on my spellings
if there are any letters missing it's the dodgy school keyboard