from a professional stand point, everything is wrong with it. a computer mic is obviously not going to give you an accurate frequency response, its going to be noisy, its not going to be very sensitive, and well, from that pro standpoint theres not much that is good about it. From my own personal standpoint, nothing is wrong with it. Most people arent going to decide whether or not they will buy an album based on recording quality (usually). The music is always most important. My friend recorded an absolutely amazing album using nothing but a computer mic and fruity loops. i say rock on.