The most frequently asked question in my workshop is whether the presenter can use notes or not.
If the notes are a couple of words to remind you of each topic you want to cover, then those notes could be helpful.
If the notes require that you constantly look down to keep your place in your presentation, then that’s a problem. When you look down at your notes you can’t also keep eye contact with your audience. You’re less interesting because you’re not thinking about what you’re saying, only about what you’re reading. You’re much more prone to get lost in your remarks because if you do lose to your place, you have no life-line. And, the audience loses interest in you when you don’t have eye contact.
Not using notes does require a certain amount of preparation and rehearsal, which most people hate to do. But, if you’re going to all that trouble to put yourself on the line in front of others, why not invest the time to make yourself great.