XLR microphones require you to get an audio mixer with phantom power to use the microphone. As a result, they are not easy to work with since they are not plug and play. But XLR microphones generally tend to offer great dynamic range in the audio department. And you can easily tweak them using an audio mixer as per your liking. On the other hand, you can plug in a USB microphone on your computer and start using it right away. But USB microphones can have significant digital background noise in the audio.