I've heard of it, I don't know that it would make a difference to have my DH tested. I would expect that he carries it along with most of his Fathers family. My FIL passed away in March, he was 67, had his first bypass while in his 40's. Had another when he was about 60. He also had Diabetes, Lymphoma and some other health problems. He was the youngest of 12 and has 1 surviving sibling. Almost all of them have died of heart disease at fairly young ages.
My DH takes 40mg of Lipator, high blood pressure meds and has recently been diagnosed with diabetes and has another drug for that. He also smokes so I don't plan on much, he's 44.
I'm not sure what testing for the gene would do at this point except confirm what we already know.
I do think that it might be something I should do for my girls so any and all preventatives could be used for them if they carry the gene, but there are also ramifications of insurance and all those other issues that have been raised when it comes to gene testing.