Being stuck in a class for any length of time will suck if it’s not an engaging experience or if you don’t like the content. Totally understandable and a definite possibility. It’s hard to get around poor instruction in any format. The one up side would be that once those 6 weeks are over, you’re done with that teacher (theoretically) for the rest of the year, instead of having to see them every other day for a few hours for the entire year.