Should I take this class online or in a classroom?

To earn my degree, I have to take an introductory Spanish course. I have the option to take it online or in the classroom.

Giving that I already know quite a bit of Spanish, I don’t think that the online course will be very bad. By taking it online, I will be done with my classes before 11 AM, I won’t have to sit through lectures, and I’ll have more time for work.

What are online classes like? Are they harder than a lecture, from your experience? Are there any disadvantages?