Is Buffy worth it?

So, I'm contemplating adding the Buffy TV show to my Netflix queue. I was sort of interested in it way back when, and then I kept hearing things about it, but it was too late to get into it. And then after seeing him as Captain JackJohn I've decided that James Marsters is all kinds of sexy. So, oh, great f-list, should I?

ETA: Got 'em all! I knew I could count on you guys!! :-D