I am and have been open to going and if I don't agree with something or think that scripture says something else to point it out if the class is open for discussion.
If you go with the realization that you might learn something good and have to wade through muck it should be fine.
If you don't have the emotional energy to deal with possible conflict, then I would skip it for now.
I figure that the teacher/preacher is human and puts their socks on one foot at a time just like I do, so I can
with the best of them if they say something I think is wrong. LOL