I loved Virus! It's my favourite drama that I've seen so far. Given, I haven't seen many yet, it was great! The music fit really well for how much action was in the drama, and the acting was awesome. I really liked how everything flowed; especially since there were lots of twists in it that you may or may not have been able to anticipate. I really wouldn't mind watching the entire series again, because it kept me on my toes a lot of the time. Maybe it's just me, but I love to find dramas that aren't sugar-coated and way too cutesy and actually have strong actors in it. In short; I loved it!