Hi! I tend to shoot in RAW so that when I open the image in photoshop, I have the ability to manipulate the actual file, instead of just adding editing effects like layer masks on top of an image. I think that the file size also give so much more to work with and they look so incredible printed! Hazards definitely include running out of disk space on your card. I think that is the only bad thing about having a large file size to shoot at.