I would take summer classes again, probably a harder class to get it out of the way. Some students take difficult courses during the summer, making it possible to put more effort into them. Others work on their general education requirements, as well as continuing extracurricular activities. People aren't as busy. A less-crowded campus also offers an advantage in the classroom.
Summer is a lot of fun.
The atmosphere is so relaxed. Smaller classes enable students to receive more attention, while they can still take advantage of the opportunities a large campus offers. It's a more mellow time. Students are carrying far fewer credits and life is less stressful. Students agree that the summer atmosphere is more laid-back.