I feel that some students would feel more comfortable using ePortfolios instead of actually speaking out in class or presenting in front of the class. I personally would rather use ePortolios and present infront of a class of 25-30 people.
If used effectively I believe that students will be better understand themselves and examine their progress. Many students are like myself and they are much comfortable displaying their work without having to stand in front of an audience.
Eportfolios can show the progress a student makes throughout the year or semester.